The soldier who helped Wikileaks publish classified diplomatic cables, Bradley Manning, should get a 60-year prison sentence, prosecutors told a military judge on Monday.

That's on the high-end of the 90-year range that's possible for the various charges Manning was found guilty of.

After a military trial that lasted several weeks, Manning was convicted on most counts on July 30. While he was found not guilty of "aiding the enemy," the most serious charge he faced, he was found guilty of 20 other charges including espionage, theft, and computer fraud charges.

"There may be no soldier in the history of the Army who displayed such an extreme disregard," the prosecutor, an Army Captain, told the judge, according to an account in the Chicago Tribune. “At least 60 years is justified. Pfc. Manning is young. He deserves to spend the majority of his remaining life in prison.”

Manning's defense lawyer didn't recommend a specific punishment but said Manning should not receive a prison sentence longer than 25 years under any circumstances, because the classified status of some of the documents he leaked expires in 25 years.

"He had pure intentions at the time that he committed his offenses," said Manning's lawyer, David Coombs, according to an AP report. "At that time, Pfc. Manning really, truly, genuinely believed that this information could make a difference."

Family members and a psychologist also testified on Manning's behalf, saying that he felt extreme mental stress due to "gender-identity disorder." After a May 2010 incident in which Manning was found rocking on the floor in his office in Iraq, he should have been taken to the behavioral health unit, his lawyer said.

The prosecutor, Capt. Joe Morrow, dismissed those excuses. Other soldiers in Manning's unit were openly gay, and Manning did not hide his sexuality from them, according to the AP report.

"It wasn't the military's fault, it wasn't the command's fault, it wasn't because he saw something horrible—it was because he had an agenda," Morrow said.

In addition to leaking thousands of diplomatic documents, Manning's most famous leak was a video of a 2007 Apache helicopter attack that killed civilians and a Reuters journalist. The video ultimately became known as the "collateral murder" video. Seeing that video pushed the 25-year-old Manning to become a leaker, a transformation he described at his trial in February.

The judge in the case will begin deliberating tomorrow.