Kaylee Gain's father reveals his daughter's dysfunctional upbringing admitting he and her mom both struggled with drug abuse before breaking up- as she recovers from horror schoolyard fight

The father of the St. Louis schoolgirl whose viral after-school beating horrified much of the nation has revealed she endured a childhood marred by drugs.

Offered up to The New York Post, the revelation comes just weeks after 16-year-old Kaylee Gain was left in life-threatening condition following the filmed fight with 15-year-old Maurnice DeClue.

Clinton Gain, 41, previously told the paper the pair had agreed to the fight, citing text messages that showed how the pair had agreed to settle their differences outside their school one-on-one.

DeClue proceeded to smash Gain's head repeatedly into the concrete, leaving her with a skull fracture and frontal lobe damage, though she has since been released from the intensive care unit.

Now, her father is speaking out again - admitting that a period of dysfunction and instability involving him and the girl's mother predated the footage.

The father of Missouri schoolgirl Kaylee Gain , Clinton Gain, has revealed how his daughter had an upbringing marred by drugs and dysfunction because of him an her mother, both of whom were drug addicts

Offered up to The New York Post , the revelation comes just weeks after 16-year-old Kaylee was left in life-threatening condition following a filmed fight with 15-year-old Maurnice DeClue 

'She was just a normal kid,' Clinton said in an exclusive interview, recalling how he and Kaylee’s mother, April Nordstrom, were both addicts during her youth.

'We tried to give them some stability and structure', he went on, before conceding that she indeed suffered during those years. 

Things got worse, he said, when the couple split up - back when Kaylee was only five.

This left her and her little brother to live with Nordstrom, he said - when she was still knee-deep in addiction.

Eventually, when Kaylee was 8, he said, the situation became so bad that both kids were sent to live with their grandparents for some two years.

By then, Clinton said he had cleaned himself up, along with remarrying and finding a job.

At that point, Kaylee, then 10, came to live with him and his spouse in St. Louis, he said.

But a new struggle came when struggled to accept her stepmom, he said - before claiming the six or so years that followed were for the most part free of turmoil.

'She was just a normal kid,' Clinton said in an exclusive interview, recalling how he and Kaylee’s mother, April Nordstrom, were both addicts during her youth'

But another feud - this one surrounding Gain and her high school nemesis DeClue - replaced those struggles at home, he said, before culminating with the widely seen beating that occurred last month,  

Just before that, her dad said, the teenager began to yearn for her mother, who he said has also since kicked her drug habit.

She went on to repeatedly ask to return to Nordstrom's home - a request Clinton said he begrudgingly agreed to. 

He quickly came to regret that decision, he said - citing another tumultuous period where where Kaylee began to have problems at school, Hazelwood East High, and was repeatedly found herself involved in altercations, like the one with DeClue.

'She was becoming a young woman,' he recalled. 'She said she needed her mother, and April was in a good place by that time. She was working, she was doing okay.' 

'We don't know who started things, if it was her or other people,' stepmom Jamie Gain added of the problems at school that followed. 'But there were problems.'

Clinton recalled how his ex would go on to relay word of these incidents to him and his new spouse, but claimed he was not provided with a full picture of what was occurring.

The father of Missouri schoolgirl Kaylee Gain , Clinton Gain, has revealed how his daughter had an upbringing marred by drugs and dysfunction because of him an her mother, both of whom were drug addicts

Another feud - this one surrounding Gain and her high school nemesis DeClue - replaced those struggles at home, he said, before culminating with the widely seen beating that occurred last month

Clinton further asserted that he reached out to Kaylee's teachers and told them to alert him of any issues, but claimed they were not helpful.

He said that under her mom's care, '[Kaylee] just didn't have the structure anymore... [and] the things [her stepmom and I] tried to tell her weren't reinforced. 

'There weren't these issues until a few years ago,' he said.

The father then claimed he knew his daughter was experiencing another difficult period, and said he tried to convince her to return to his home.

She refused, he recalled - citing his stricter parenting style.

Moreover, he claimed he and Nordstrom were on good terms at this point, stating how she and him were committed to raising Kaylee collaboratively.

However, he said she failed to keep a handle on her daughter's behavior, and left him unaware until the 25th hour.

The girl's stepmom went on to recall the call she got from her husband's ex following the March 8 fight, in which a hysterical Nordstrom told her that Kaylee had been seriously hurt at school.

The stepmother proceeded to speed to the hospital and called Clinton, after which the dad also arrived.

Claiming he and his ex have already agreed to have Kaylee come live with him again when she fully recovers, he conceded: 'I have a lot of guilt that I didn’t bring her back sooner'

'When I first got to the hospital I was worried and concerned,' he told the Post, before quickly adding, 'But when I found out this was from a fight, I got angry. 

'Because I felt like this could have been prevented.'

Claiming he and his ex have already agreed to have Kaylee come live with him again when she fully recovers, he conceded: 'I have a lot of guilt that I didn’t bring her back sooner.'

Meanwhile, video of the fight - and Kaylee's head being repeatedly smashed into concrete - continues to circulate on social media. 

It shows how the fight left the youngster twitching on the ground and completely unconscious, after the two agreed to settle their differences roughly a mile away from the school they both attend.

She was subsequently rushed to the ICU with a brain bleed, though is now on the mend.

However, she still cannot walk on her own and makes little sense when speaking, Clinton this said, while also revealing that he been able to view text messages his daughter sent ahead of the fight to her stepmother. 

'They both agreed to the fight, to meet up and settle what was going on,' Gain told Post, adding that Kaylee and DeClue had been insulting each other for weeks ahead of the fight.

DeClue, as of writing, is currently in custody, facing felony assault charges as officials mull trying her as an adult.

Her family has painted her as an honor student who was simply defending herself during a fight started by Kaylee. Clinton continues to dismiss that as false.