More details are emerging about the 24-year-old Connor Betts, who carried out the massacre in Dayton, Ohio, killing nine, including his sister.
Classmates said Betts, who was killed by police, fantasized about killing people as far back as high school. Photos on his Myspace page from 2013 show his face covered in a bandana. In another he's wearing a gas mask.
He posted bizarre scribbles that say “bloody massacre,” “absolute carnage” and “all must be annihilated."
He also tweeted: “I am going to hell and I’m not coming back.”
In 2012, he scrawled a hit list of classmates he wanted to kill and another of girls he wanted to rape on a bathroom wall at Bellbrook High School in Dayton. He was suspended but returned to the school and graduated in 2013.
Former classmates described Betts as a walking time bomb.
“Connor threatened to seriously hurt women who rejected him — myself included," one person wrote on social media.
“He threatened to kill women and attack the school,” wrote another.
On early Sunday, Betts turned his sick fantasies to reality.
He shot dead his own 22-year-old sister, Megan, along with eight other victims in downtown Dayton.
The terror and panic was caught on surveillance video. As hundreds fled, police officers moved in and took the killer down in just 30 seconds.
The shooter used .223-caliber high-capacity rifle with 100-round drum magazines, according to reports, and donned a mask as well as a bulletproof vest as he unleashed his carnage.
Flowers and candles marked the spots where victims died today.
Ohio Rep. Tim Ryan was at the scene of the shootings Monday.
“The American people don’t feel safe," he said. "There's not a place they can go and feel safe. They can’t go to city hall, can't go to church, can't go shop at Walmart, can't go for a few beers on a Saturday night for fear someone is going to get killed."
At an emotional vigil Sunday, nine doves were released to symbolize each of the victims whose lives were cut short.