Police: Driver Charged in Tracy Morgan Crash was Awake 24 Hours

A truck driver charged in a weekend crash that killed a man and injured comedian Tracy Morgan and others in New Jersey was awake for more than 24 consecutive hours before the incident, a criminal complaint filed in the case says.

Kevin Roper, 35, is charged with vehicular homicide and assault by auto in the Saturday morning crash on the New Jersey Turnpike.

The wreck took place about 1 a.m. Saturday when the limo van Morgan was in was hit by a tractor-trailer on the New Jersey Turnpike, police said.

The collision killed Morgan's fellow passenger, comedian James McNair - who performed under the name Jimmy Mack.

Comedians Ardie Fuqua and Harris Stanton were among the injured, as was a man named Jeffrey Millea.

Morgan's publicist said he's showing signs of improvement.

"He has been more responsive, which is an incredibly encouraging sign," publicist Lewis Kay said Sunday.

MORE on CNN.com.