New York University professor, Mark Kleiman (pictured)‏, called out conservatives on Twitter for verbally attacking survivors of the Florida high school shooting massacre

An outraged New York University professor called out conservatives on Twitter for verbally attacking survivors of the Florida high school shooting massacre.

'The MAGA maggots are out in force, feasting on the corpses of murdered schoolchildren,' public policy professor Mark Kleiman‏ tweeted Monday morning.

Kleiman was responding to political news contributor Kambree Kawahine Koa's tweet when he made the remark.

'It’s quite interesting that the children survivors haven’t even buried their friends, grieve, get over shock but have had the time to plan for a march, come up with a creative hashtag, get their story to all media outlets all in such a short amount time.....' Koa tweeted.

She was referring to the numerous student survivors who are planning to march on Washington, DC, to demand tighter gun control.

Koa also used the #MarchForOurLives hashtag, which is the name of the upcoming march.

Students at Marjory Stoneman Douglas High School, in Parkland, Florida, where Nikolas Cruz, 19, opened fire on Wednesday killing 17 and leaving 15 injured, have demanded an end to gun violence and school mass shootings.

But Koa blamed Democrats for 'using children as pawns' in a plan that 'will BACKFIRE in Nov like it did in 2016'.

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'The MAGA maggots are out in force, feasting on the corpses of murdered schoolchildren,' public policy professor Mark Kleiman‏ tweeted Monday morning

Kleiman was responding to political news contributor Kambree Kawahine Koa's tweet (pictured) when he made the remark

Koa was referring to the numerous student survivors who are planning to march on Washington, DC, to demand tighter gun control

Protesters held signs calling for more gun controls at a rally three days after the shooting in Parkland, Florida

High school senior, Emma Gonzalez, told Fox News last week: 'Please stop allowing us to be gunned down in our hallways.'

She insisted that this would be the final school shooting in US history.

'We will be the last mass shooting,' said Gonzalez, a senior at the high school who took cover on the floor of the auditorium as a shooter rampaged through the building.

Gonzalez and other students said they are organizing a protest in Washington on March 24 called March For Our Lives to call for action by politicians.

'People keep asking us, what about the Stoneman Douglas shooting is going to be different, because this has happened before and change hasn't come?' Cameron Kasky, an 11th-grader, told ABC's 'This Week.' 'This is it.'

'At the end of the day, this isn't a red and blue thing. This isn't Democrats or Republicans. This is about everybody and how we are begging for our lives,' he added on Face The Nation.

'We need to make real change here and that's exactly what we're going to do.'

Seventeen perished and 15 were wounded in the hail of bullets at Marjory Stoneman Douglas High School in Parkland, Florida on Wednesday

'We will be the last mass shooting,' said Emma Gonzalez, a senior at the high school who took cover on the floor of the auditorium as a shooter rampaged through the building

'This cannot be [our] normal. This can be changed and it will be changed. And anybody who tells you that it can't, is buying into the facade of this being created by the people who have our blood on their hands,' he said.

The teens also plan to create a 'Badge of Shame' for politicians who continue to accept money from the NRA.

'At this point, any politician on either side who is taking money from the NRA is responsible for events like this,' Kasky said.

'The NRA is fostering and promoting this gun culture in which people like Nikolas Cruz can gun down 17 innocent lives in our school.'

The protesters highlighted politicians such as Republican Florida Senator Rubio who has accepted $3,303,355 in campaign spending by the NRA, according to the LA Times.

He claimed in the wake of the tragedy that gun control would not have stopped the shooting.

Gonzalez cries as she hugs her father Jose Gonzalez at the rally. The senior took cover on the floor of the high school auditorium as a shooter rampaged through the building on Wednesday

Seniors Delaney Tarr, 17, (left) and David Hogg, 18, (right) both spoke out at the rally in Fort Lauderdale on Saturday

The Florida Republican told the US Senate that it 'isn't fair or right to create this impression that somehow this attack happened because there is some law out there that we could have passed to prevent it'.

'Most of the proposals that have been offered would not have prevented, not just yesterday's tragedy, but any of those in recent history,' Rubio added. He also made similar comments after the Pulse nightclub shooting.

The students are hoping to get a reaction from President Donald Trump who is yet to endorse any gun control policies.

Instead, he has discussed the mental health of the shooter and even blamed the FBI's Russia investigation, tweeting: 'Very sad that the FBI missed all of the many signals sent out by the Florida school shooter. This is not acceptable.

'They are spending too much time trying to prove Russian collusion with the Trump campaign - there is no collusion. Get back to the basics and make us all proud!'

Gunman Nikolas Cruz, 19, at is seen on a closed circuit television screen during a bond hearing in front of Broward Judge Kim Mollica at the Broward County Courthouse on Thursday

Students left the school on Wednesday with their arms on each other's shoulders during the active shooter situation

An injured female was transported from the school on a stretcher by first responders on Wednesday afternoon

Plans for the Washington march have emerged after thousands gathered on Saturday at the federal court house in Fort Lauderdale, some 25 miles from where the 17 students were shot and killed.

Gonzalez directly addressed Trump, reading out his tweet in response to the shooting and demanding to know how much the NRA had donated to his campaign.

During the presidential election, the gun owners' rights group pumped $31 million into ads supporting Trump and attacking his Democratic rival, Hillary Clinton

Gonzalez also said adults who knew that the shooter was mentally ill should have done more to prevent him from having a weapon.

'We need to pay attention to the fact that this isn't just a mental health issue,' Gonzalez said at last week's rally. 'He wouldn't have been able to kill that many people with a knife.'

More than a thousand people attended a candlelight vigil for the victims of the Wednesday shooting at Marjory Stoneman Douglas High School, in Parkland, Florida

It was a deeply emotional time for the many students who had lost their friends or family members in the attack

Dressed in the school's colors, some held flowers while others wielded signs asking for action to fight school violence, including gun control

Another senior at the school, Delaney Tarr, told the crowd: 'My innocence, our innocence has been taken away from us. I am 17 but in a matter of days I have aged decades.'

Senior David Hogg, 18, also spoke out at the rally, saying: 'Thank you for your prayers and condolences but that is not enough.'

'We've been hearing the same thing again and again, and same thing continues to happen. We say stop it, stop it today,' Hogg said.

'No more guns, no more guns!' the crowd began chanting at points.

Other speakers demanded a ban on 'assault weapons'. Shooter Nikolas Cruz used an AR-15-style semi-automatic rifle that he purchased legally a year ago to kill the students on Wednesday.

Many speakers at the rally urged for change through the ballot box, suggesting that Democrats would offer solutions

Protesters hold signs at a rally for gun control at the Broward County Federal Courthouse in Fort Lauderdale, Florida on Saturday

Students who survived the shooting at Stoneman have been speaking out loudly in the days since the massacre on Wednesday.

David Hogg urged 'policy makers take a look in the mirror and take some action' in an interview just one day after the shooting.

'Ideas are great, but without action, ideas stay idea and children die,' added the teen, whose articulate, 'common sense' response to the shooting has won him fans on Twitter.

Hogg was in his AP Environmental Science class when he heard a gunshot ring out at around 2.30pm.

'So I started running with the herd and we're running we're actually running towards the freshman building,' he told CNN. 'And thank god a janitor stopped us.'

'That's not acceptable,' the very articulate 18-year-old said. 'That's not something that should happen in this country, especially when we're going to school. It's something that we really need to take a look at.

'Our policy makers and some people need to look in the mirror, and take some action.'

David Hogg (pictured with classmate Kelsey Friend) urged policy makers to take action in an inspirational interview outside his school earlier this week

Meanwhile, state lawmakers in Florida have just three weeks left in their annual 60-day session and normally are trying to wrap up work on a new state budget in the final days.

But the shooting at Marjory Stoneman Douglas High School in Parkland has revived an ongoing legislative debate about how to respond to gun violence.

Democrats want the Legislature to take up gun control bills that have languished again this year, but Republican legislative leaders are talking about boosting mental health programs in Florida's public schools as well as considering measures that would bolster safety on school campuses.

Governor Rick Scott has said he plans to talk to legislative leaders in the coming week about what could be done to make it harder for people who are mentally ill to purchase a gun.