Gideon Moncrieffe, a TikTok executive who was slashed on the New York City subway by a stranger in 2023, is now suing the MTA for “systemic negligence,” according to the New York Post. The outlet, which obtained court filings, reports that Moncrieffe is suing for an unspecified amount because of the “profound psychological trauma” he has dealt with since the random attack by a rider named Sean Lewis. The slashing, which occurred shortly after the death of Jordan Neely incident, came about when Moncrieffe stepped in during an argument Lewis was having with another rider. “I said, ‘Look, somebody was killed on the train two weeks ago, they were choked out because someone proceeded to be aggressive,’” Moncrieffe told Lewis before being sliced down his face. One hundred stitches were needed to sew up the 8-inch wound. Shortly before assaulting Moncrieffe, Lewis had been arrested for choking and threatening his girlfriend with a knife. In the suit, Moncrieffe called the incident “foreseeable” and urged the MTA to stay on top of its banned rider policy along with other safety measures. Lewis was sentenced to seven years in jail for slashing Moncrieffe.