Story highlights Opposition leader: It's "very important to find a peaceful way to be the winner"

Government, opposition agree on deal to end violence, alter constitution

Some protesters say the deal is "not enough," demand president's resignation

Yanukovych is believed to have gone to eastern Ukraine, U.S. official says

Three months of political unrest, one week of horrific internecine violence, a few frenetic hours of negotiations -- it all culminated in a breakthrough deal In Ukraine to cut the president's powers, reinvent the Constitution and pave the way to free a key opposition leader.

These developments Friday gave hope to the Eastern European nation. But as long as angry protesters pack Kiev's Maidan, or Independence Square, as long as the emotions remain raw, as long as the bloodshed is still fresh, this story isn't over.

"I feel very proud of Ukrainians because we showed we are able to struggle for our future, our freedom," said Sophia Holotna, whose friend was among the scores of demonstrators killed in the capital.

"But now I feel almost very sadness. It's my first feeling."

The agreement -- hashed out overnight and into the afternoon among Ukrainian leaders, opposition figures and European Union representatives -- drew some cheers when it was announced to the Maidan crowd.

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One of the main opposition leaders, Vitali Klitschko, took the stage a short time later. He got a notably frostier reception, contending that the government was trying to divide the protesters, before walking off to a handful of jeers.

Later, a protester -- not a leader, not part of any political group, just an ordinary Ukrainian he insisted -- expressed disappointment with the deal and proposed that action should be taken if President Viktor Yanukovych doesn't resign by 10 a.m. Saturday.

Another protester, Viola Danis, said simply the deal is "not enough."

"This agreement does not pay for the life of my friend and the lives of the Ukrainian people," she said.

As the crisis brewed in Kiev, a senior U.S. State Department official -- who talked to reporters on condition of not being identified and who had just been on the phone with Ukraine's foreign minister -- said that Yanukovych had gone to Kharkiv, Ukraine's second's largest city, for a meeting. The same official characterized such travel to eastern Ukraine by the President as "not unusual."

While the government revolves around Yanukovych, there is not a single face of the opposition. Its demonstrators have strong and varying opinions about what they'd accept -- and what they'd be willing to do if these standards aren't met.

Thus, while there is an apparent truce, there's not peace in the Ukraine. Uncertainty, anger and anxiety still predominating, helping to paralyze parts of this Eastern European nation.

"It's not possible to work in this environment, not to study, (not) to do nothing," said another protester by the name of Alexei. "Basically everything has stopped and we're waiting for this situation to resolve. And it's really exhausting."

Deal calls for cutting powers, end to occupation

Friday was a day of action -- but unlike on Tuesday and Thursday, thankfully, the action happened in meeting rooms and Parliament, rather than in pitched battles on the streets.

The first, biggest announcement on this front was the landmark agreement calling for cutting the president's power and rolling back the Constitution to what it had been in 2004. According to a draft posted on the German Foreign Office's website, further constitutional reforms must be completed by September.

"Good compromise for Ukraine. Gives peace a chance. Opens the way to reform and to Europe," Polish Foreign Minister Radoslaw Sikorski said via Twitter.

The deal also requires presidential elections "as soon as the new Constitution is adopted but no later than December 2014."

And there will be an investigation -- conducted by government authorities, opposition figures and European Council representatives -- into the violence.

By then, security forces should've long ago stepped back from a" confrontational posture" with permission to use force only to protect pubic buildings, per the agreement. And within 48 hours, protesters should have turned in their illegal weapons and withdrawn from streets and public buildings.

But will they?

In a conversation urging a protest leader to accept the deal that was overheard by ITN/ITV, Sikorski pleaded, "If you don't support this, you'll have martial law, you'll have the army. You will all be dead."

The U.S. State Department official acknowledged the agreement is "a very tough sell" for many seething opposition activists, and called the deal "very, very fragile."

Speaking to CNN, Klitschko said he's listening to his side's dissenters and still pushing to maintain pressure on Yanukovych -- but not through violence.

"I tell everybody it is very important ... not to be involved in the war," said Klitschko, who called ensuring that the country doesn't "split" as a top priority. "(It's) also very important to find a peaceful way to be the winner."

Parliament acts to free opposition leader

Hours after that deal was signed, Ukraine's Parliament, the Rada, moved quickly to pass a series of measures seemingly in line with protesters' demands.

The first order of business was to fulfill the first requirement of the agreement -- passing a law to roll back the country's constitution to an earlier version that limits the President's powers.

Other bills called for the dismissal of the nation's interior minister and release of Yulia Tymoshenko, a former prime minister who earlier was a hero of the country's 2004 revolution, and who is a powerful symbol to the opposition.

A year after Tymoshenko lost the 2010 presidential election to Yanukovych and became his fiercest opponent, Ukrainian prosecutors charged her with signing overpriced gas deals with Russian state-owned energy provider Gazprom.

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Photos: Ukraine's 2014 revolution Photos: Ukraine's 2014 revolution Ukrainian demonstrators gather in Kiev's Maidan, or Independence Square, on February 21, 2014, a day after the bloodiest day of revolution protests. Nearly 50 activists were killed and hundreds more injured in clashes in the square on February 20, 2014. The street protests soon led to the ouster of pro-Russian President Viktor Yanukovych and triggered a chain of events that included Russia's annexation of Ukraine's Crimean Peninsula and fighting in Eastern Ukraine with pro-Russian separatist forces. Hide Caption 1 of 50 Photos: Ukraine's 2014 revolution A protester aims a gun in the direction of suspected sniper fire in Kiev on Thursday, February 20. Thousands of demonstrators had packed Independence Square since November when President Viktor Yanukovych reversed a decision on a trade deal with the European Union and instead turned toward Russia. Hide Caption 2 of 50 Photos: Ukraine's 2014 revolution Police use water cannons against protesters in Kiev on February 20. Hide Caption 3 of 50 Photos: Ukraine's 2014 revolution An injured protester is carried away from Independence Square on a stretcher February 20. Hide Caption 4 of 50 Photos: Ukraine's 2014 revolution Captured police officers are led away by protesters in Kiev on February 20. Hide Caption 5 of 50 Photos: Ukraine's 2014 revolution Hide Caption 6 of 50 Photos: Ukraine's 2014 revolution A woman on February 20 mourns over protesters who were killed during clashes. Hide Caption 7 of 50 Photos: Ukraine's 2014 revolution Protesters rebuild barricades in Independence Square on February 20. Hide Caption 8 of 50 Photos: Ukraine's 2014 revolution Riot police face protesters in Kiev on February 20. Hide Caption 9 of 50 Photos: Ukraine's 2014 revolution Protesters man a barricade on the outskirts of Independence Square on February 20. Hide Caption 10 of 50 Photos: Ukraine's 2014 revolution An injured protester is evacuated from Independence Square on February 20. Hide Caption 11 of 50 Photos: Ukraine's 2014 revolution A priest walks with a cross and shield during clashes in central Kiev on February 20. Hide Caption 12 of 50 Photos: Ukraine's 2014 revolution Medics embrace in the lobby of the Hotel Ukraine on February 20. Hide Caption 13 of 50 Photos: Ukraine's 2014 revolution A high-ranking police officer, left, and a representative for the protesters speak with each other near the Cabinet of Ministers in Kiev on February 20. Hide Caption 14 of 50 Photos: Ukraine's 2014 revolution Protesters light Molotov cocktails in Kiev on February 20. Hide Caption 15 of 50 Photos: Ukraine's 2014 revolution Protesters clash with police in Independence Square on February 20. Hide Caption 16 of 50 Photos: Ukraine's 2014 revolution Protesters move up an embankment in Kiev on February 20. Hide Caption 17 of 50 Photos: Ukraine's 2014 revolution An injured demonstrator is carried away from Independence Square on February 20. Hide Caption 18 of 50 Photos: Ukraine's 2014 revolution A protester shouts during clashes with police on February 20. Hide Caption 19 of 50 Photos: Ukraine's 2014 revolution Protesters run from a burning barricade in Kiev on February 20. Hide Caption 20 of 50 Photos: Ukraine's 2014 revolution A protester rolls a tire toward burning barricades on February 20. Hide Caption 21 of 50 Photos: Ukraine's 2014 revolution Protesters advance to new positions in Kiev on February 20. Hide Caption 22 of 50 Photos: Ukraine's 2014 revolution Fireworks explode over protesters in Independence Square on Wednesday, February 19. Hide Caption 23 of 50 Photos: Ukraine's 2014 revolution A protester throws a Molotov cocktail in Kiev on February 19. Hide Caption 24 of 50 Photos: Ukraine's 2014 revolution Protesters clash with police in Independence Square on February 19. Hide Caption 25 of 50 Photos: Ukraine's 2014 revolution Protesters use a compressed air cannon to launch a Molotov cocktail toward police lines in Independence Square on February 19. Hide Caption 26 of 50 Photos: Ukraine's 2014 revolution A protester hurls a Molotov cocktail toward police on February 19. Hide Caption 27 of 50 Photos: Ukraine's 2014 revolution Police take cover behind shields as fireworks go off in Kiev on February 19. Hide Caption 28 of 50 Photos: Ukraine's 2014 revolution Police form a barrier in Independence Square on February 19. Hide Caption 29 of 50 Photos: Ukraine's 2014 revolution Protesters throw rocks at riot police in Independence Square on February 19. Hide Caption 30 of 50 Photos: Ukraine's 2014 revolution Independence Square smolders during protests on February 19. Hide Caption 31 of 50 Photos: Ukraine's 2014 revolution Riot police officers rest against a column in Independence Square on February 19. Hide Caption 32 of 50 Photos: Ukraine's 2014 revolution An injured protester is moved out during clashes with riot police in Kiev on February 19. Hide Caption 33 of 50 Photos: Ukraine's 2014 revolution Protesters protect themselves with shields as they clash with police in Kiev on February 19. Hide Caption 34 of 50 Photos: Ukraine's 2014 revolution Protesters sleep on the floor inside a Kiev monastery on February 19. Hide Caption 35 of 50 Photos: Ukraine's 2014 revolution A protester rushes through a broken door in the regional prosecutor's office in Lviv, Ukraine, on February 19. Police said the unrest has spread to western Ukraine, with protesters attacking police and local government offices in a number of regions. Hide Caption 36 of 50 Photos: Ukraine's 2014 revolution Protesters in Lviv burn papers from a government building on February 19. Hide Caption 37 of 50 Photos: Ukraine's 2014 revolution A protester runs during clashes with police in Kiev on Tuesday, February 18. Hide Caption 38 of 50 Photos: Ukraine's 2014 revolution Violence between police and protesters escalates February 18 in Kiev. Hide Caption 39 of 50 Photos: Ukraine's 2014 revolution Protesters burn a car in central Kiev on February 18. Hide Caption 40 of 50 Photos: Ukraine's 2014 revolution A protester stands atop a barricade in Kiev on February 18. Hide Caption 41 of 50 Photos: Ukraine's 2014 revolution Protesters clash with riot police outside Ukraine's parliament in Kiev on February 18. Hide Caption 42 of 50 Photos: Ukraine's 2014 revolution A rainbow forms over a protester ducking for cover in Kiev on February 18. Hide Caption 43 of 50 Photos: Ukraine's 2014 revolution Riot police protect themselves during clashes in Kiev on February 18. Hide Caption 44 of 50 Photos: Ukraine's 2014 revolution Hide Caption 45 of 50 Photos: Ukraine's 2014 revolution A protester is engulfed in flames while running from the clashes in Kiev on February 18. Hide Caption 46 of 50 Photos: Ukraine's 2014 revolution Riot police detain a protester in Kiev on February 18. Hide Caption 47 of 50 Photos: Ukraine's 2014 revolution Protesters invade the main office of the ruling Party of Regions in Kiev on February 18. Hide Caption 48 of 50 Photos: Ukraine's 2014 revolution Riot police shield themselves during clashes with protesters on February 18. Hide Caption 49 of 50 Photos: Ukraine's 2014 revolution Protesters throw stones toward riot police in Kiev on February 18. Hide Caption 50 of 50

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She was convicted and sentenced to seven years in prison at a trial she repeatedly called a farce overseen by a judge she called Yanukovych's "stooge." International observers criticized her trial as being a politically motivated sham.

Even with parliament's action, Tymoshenko's freedom was not expected to be immediate: A court must now act to free her, and other charges pending against her remain in place.

Violence erupts

This wave of unrest began in November, amid anger about Yanukovych's decision to scrap a European Union-oriented trade deal and turn toward Russia.

Russia, which has offered to lend money to cash-strapped Ukraine in a deal worth billions of dollars and to lower its gas prices, has put pressure on Yanukovych to crack down on demonstrators.

Western leaders, who have offered Ukraine a more long-term aid package requiring economic modernization, urged the President to show restraint, open up the government to the opposition and let the democratic process work out.

Yet, fairly soon, it became clear that the discord wasn't just about Ukraine's ties to Europe or Russia, but about larger issues such as corruption and control. The opposition called Yanukovych heavy-handed, with Klitschko and others saying protesters wouldn't leave Maidan until the president resigns.

This tension boiled over Tuesday, when security forces waded into a Kiev crowd with water cannons, stun grenades, nightsticks and armored personnel carriers. At least 26 people -- protesters and police alike -- were killed.

Late Wednesday, the government announced it and opposition leaders agreed to a truce and to start talks aimed at a longer-term solution.

But it didn't last, collapsing in unprecedented gore in Kiev and unrest elsewhere in the Ukraine.

Some protesters in the capital appeared to be armed, while men wearing what looked like government uniforms fired what appeared to be automatic weapons and, in at least one case, a sniper rifle. The government later confirmed its police fired at protesters, explaining they did so to protect unarmed officers.

The death toll was far more uneven than on Tuesday: While authorities said three more police died, protesters said more than 100 of their own had been killed.

The fresh blood sparked outrage among Western governments, several of which pushed sanctions against those responsible.

Even after Friday's deal was announced, demonstrators went to graphic lengths to remember the dead -- bringing coffins onto their stage in Independence Square.

Pavel, a demonstrator who identified himself only by his first name, said he'd helped carry away some of those shot Thursday, and he insisted he won't forget, nor will he give up.

"As long as (Yanukovych) is president," he said, "the movement will continue."