Colin Ferguson arrived Thursday afternoon at Great Meadow Maximum Security Prison in Comstock, where he will serve a life term for slaying six people aboard a Long Island Railroad commuter train.
James Flateau, spokesman for the state Department of Correctional Services, said Ferguson -- sentenced Wednesday for the Dec. 7, 1993, shooting spree that also injured 19 people -- will live in a special unit of 30 one-inmate cells.
Nassau County Deputy Undersheriff Jerry Donahue, who accompanied Ferguson to the jail, said, "He was very nervous. He knew it was the last time he was going to see the light of day."
Ferguson was recognized by motorists slowed in traffic along the Long Island Expressway.
"One threw him the finger, and another guy acted like he was choking himself," according to Donahue. A third pretended he had a gun and made a shooting motion with his fingers.
Ferguson looked away.
Nassau County Executive Thomas Gulotta said the county spent $510,000 on court and jail costs alone on Ferguson since his arrest 15 months ago.