SHREVEPORT, La. (AP) -- John M. Stephens, the 1988 Offensive Rookie of the Year for the New England Patriots, has been killed after his pickup truck ran off a highway and struck some trees, authorities said Wednesday. Stephens, 43, apparently lost control of his vehicle on a rural stretch of Louisiana Highway 169 near Shreveport on Tuesday evening, the Caddo Parish Sheriff's office said. Stephens wasn't wearing a seatbelt and was thrown after the truck hit some trees head-on, sheriff's spokeswoman Cindy Chadwick said in a statement.