SACRAMENTO, Calif. » The Sacramento Police Department is asking for help in identifying two suspects involved in the stabbing of a U.S. Airman hailed as a hero for helping to stop a terror attack on a Paris-bound train over the summer.

The department on Saturday released two composite sketches that show what the suspects are believed to look like based on witnesses and surveillance video of the Oct. 8 attack against U.S. Air Force Airman Spencer Stone.

The suspects are two "Asian or Filipino" men who on the day of the attack were wearing white shirts and blue jeans, police said. They were seen leaving the area in a late model Toyota Camry.

Stone and two childhood friends from Sacramento — Alek Skarlatos and Anthony Sadler — became celebrities in August when they tackled and disarmed a gunman with ties to radical Islam.

Stone, 23, was knifed several times in the torso shortly after leaving a bar, where an hour earlier he was applauded by patrons.

He was released Thursday from UC Davis Medical.