Thousands are expected to attend a public memorial service Monday for former Navy SEAL sniper Chris Kyle, who was killed at a Texas shooting range allegedly by a young veteran he was trying to help.

Mourners will gather at Cowboys Stadium to pay tribute to the 38-year-old who was reputed to be the deadliest sniper in American military history.

Kyle left the Navy in 2009 after four tours of duty in Iraq and wrote the best-selling book "American Sniper."

25-year-old Iraq War veteran Eddie Ray Routh has been charged with killing Kyle and his friend Chad Littlefield at a gun range Feb. 2.

Kyle will be buried at the Texas State Cemetery in Austin after a 200-mile funeral procession starting in the Dallas area Tuesday morning.