Updated

Authorities have identified the third victim who died in an Amtrak train derailment Monday morning in Washington state as a man who was under federal supervision for a child pornography conviction.

Benjamin Gran, 40, of Auburn, Washington, died in Monday’s derailment after suffering multiple traumatic injuries, the Pierce County coroner’s office said Wednesday.

AMTRAK TRAIN DERAILMENT VICTIMS IDENTIFIED AS TRANSIT EMPLOYEE, RAIL ADVOCATE

Gran had been ordered to a lifetime of federal supervision following a felony conviction for child pornography. He pleaded guilty in 2013 and served two years in prison, The Associated Press reported.

His mother, Linda Daniels, told the Seattle Post-Intelligencer that Gran had recovered from what she called a "little blip" in his life. "He'd pulled it together."

Investigators identified Gran as a member of an online forum called BoyLovers.net and was caught with the pornography in his home, the newspaper reported in 2013.

Gran, who also was ordered to register as a sex offender, worked on computers at a community college outside Tacoma, according to Q13 Fox.

The Associated Press contributed to this report.