David Katz, the Jacksonville shooter who killed two people before turning his handgun on himself would reportedly walk around his home in circles and go days without bathing

The Jacksonville shooter who killed two people before turning his handgun on himself on Sunday would reportedly walk around his home in circles and go days without bathing.

David Katz's parents said they desperately tried to find treatment for their son's troubling behavior while he was in school.

But his behavior never improved despite their numerous attempts to get him psychiatric care.

'David would go days without bathing, would play video games until 4am on school nights, would walk around the house in circles,' Howard County Circuit Judge Lenore Gelfman wrote in 2010, according to The Baltimore Sun.

'[He] was failing all classes at Hammond High, was unresponsive to school teachers and uncooperative with school psychotherapists/counselors, and was extremely hostile toward his mother,' Gelfman continued.

His mother, Elizabeth Katz, told the court that her son once punched a hole in her bedroom door to retrieve the video game controllers she had confiscated.

Earlier on Monday it was reported that David Katz struggled at college and had 'significant' medical needs which resulted in him undergoing psychiatric treatment.

Katz, 24, died on Sunday after shooting dead two competitors, Eli Clayton and Taylor Robertson, at the Madden 19 qualifier in Florida.

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Katz, 24,(left in his yearbook photograph) is believed to have been living alone with his NASA engineer father Richard (right). It has emerged he had 'significant medical problems and needs' as a child when his parents were divorcing

His mother, Elizabeth Katz, told the court that her son once punched a hole in her bedroom door to retrieve the video game controllers she had confiscated. Neighbors said the Katz family moved into the house seven years ago and described them as 'normal' and 'quiet'

A fuller picture of his life began to emerge on Monday as the FBI raided the home his father lived in in Baltimore, Maryland.

Richard Katz is a NASA engineer. He divorced David's mother Elizabeth in 2007. The pair have one other son, Brandon, 28.

On Monday, staff from The University of Maryland revealed how David struggled to keep up after enrolling in classes in 2014, three years after graduating from Hammond High School.

Before he attended college, he went to Sheppard Pratt Health System in Towson for psychiatric treatment.

His parents made reference to it in divorce papers where they described his two stints there and the fact that he had been prescribed anti-psychotic and antidepressant medications afterwards.

He studied environmental science and technology and kept to himself, barely speaking to the other students or staff, they said.

'I knew the other students very well, but he did not open up the same way as the others did.

'I pulled him aside and asked if there was anything I could do to help and he basically had no reaction to that,' Natalie Gill, a former teachers' assistant, told The Sun Sentinel.

She said that he thanked her at the end of the semester.

'I thought, "maybe I did have a little relationship with him after all."'

Katz enrolled in the University of Maryland in 2014 to study environmental science and technology but there has been no recent record of him there

ATF agents leave the Katz family home in Baltimore on Sunday hours after the shooting

The Katz family home (left door) was raided by federal agents just hours after the shooting

Katz enrolled in 2014 but there is no record of him at the school this year nor is there any record of him graduating.

As part of their proceedings, a judge had ordered both parents to maintain health coverage for the boys who had 'significant medical problems and needs'.

Katz's mother worked for the FDA at the time of the proceedings in 2014.

No one from his family has yet to comment on the shooting.

Officers were seen swarming around the three-bed, $700,000 condo in Baltimore's inner harbor on Sunday night within hours of the incident.

Agents at the home wore bullet-proof vests and carried rifles and shotguns as they went into the property.

Reporters who gathered outside did not see any authorities carrying any bags of evidence outside, Fox News said.

A neighbor, Jerry Knauer, described Katz's father as a 'really good guy' adding in a video interview that 'he's been really nice to us'.

Baltimore City police and ATF agents went in and out of the home of David Katz on Sunday night

ATF agents stand outside the Katz home in Baltimore hours after the Jacksonville shooting

Another neighbor told DailyMail.com that Katz had been about 17 when the family moved into the neighborhood about six years ago.

'Nothing suspicious, they just seemed like a kind of quiet, normal family,' the neighbor said.

The shooting broke out as the tournament was being live-streamed around the world and a game was in progress.

In footage of the tournament, one of the players is seen with a dot that appears to be a laser pointer dancing on his chest and neck.

As the live video shot cuts to the action on the virtual football field, gunshots and chilling screams can be heard in the background.

A red dot (circled) that appeared to be from a laser pointer was seen on Eli Clayton's chest in a livestream, shortly before the camera cut away, and gunshots and screams were heard

Members of the Madden community say that Clayton (left) and Taylor Robertson (right with wife and son) were the two people killed in Katz's suicidal shooting rampage

The commentators can be heard going silent as the first gunshots are fired and people begin screaming.

The stream then cuts off and a message appears saying 'controller disconnected'.

One witness told CNN he saw the gunman shoot multiple people before killing himself and that it appeared he had a laser sight on the gun to help him target victims.

Police arrived on the scene within two minutes of receiving the first 911 calls at 1.34pm, Sheriff Williams said.

Witnesses said people trampled each other while fleeing the gunfire.

Marquis Williams, 20, says he and his girlfriend, Taylor Poindexter, both from Chicago, were ordering pizza close by when shots erupted. He said Sunday that he didn't think it was gunfire at first.

Williams said: 'Initially we thought it was a balloon popping, but there weren't any balloons in the room. Then we heard repeat shots and we took off running.'