U.S. President Donald Trump said on Sunday that the suspect accused of trying to attack administration officials at a black-tie gala on Saturday night was a “pretty sick guy” who had been flagged to law enforcement by family members.

Trump said in TV interviews that the suspect, whom an official identified as 31-year-old Cole Tomas Allen, of Torrance, California, had posted what Trump described as an “anti-Christian” manifesto.

“He was a Christian, believer, and then he became an anti-Christian, and he had a lot of change,” Trump told CBS’ “60 Minutes” program. “He was probably a pretty sick guy.”