ALBANY, N.Y. — The gunman who killed six people and wounded 19 on a New York commuter train in 1993 tried to incite a deadly riot at an upstate prison, a state court concluded Thursday.
The four Appellate Division justices upheld prison disciplinary charges against Colin Ferguson. They wrote that there was ‘‘substantial evidence’’ that he threatened violence and conspired to riot.
On Dec. 7, 1993, Ferguson boarded a Long Island Rail Road train in Queens and fired methodically over several minutes before he was tackled by passengers. Now 56, he’s at a facility near the Canadian border and eligible for parole in 295 years from convictions on charges including murder.
A corrections officer reported hearing him encouraging others to riot and use weapons to kill guards on Sept. 11, 2011, at Attica prison. He was found guilty at a disciplinary hearing and appealed. The justices rejected his claims that the hearing officer was biased.