DUNCAN, Oklahoma - An Oklahoma teenager pleads guilty today to murdering a man out of boredom.

A judge sentenced 19-year-old Michael Jones to life in prison.

Police say he and two others killed 22-year-old Chris Lane in August of 2013.

8/21/2013 Duncan Community Remembers Christopher Lane

Lane was from Australia, playing baseball at East Central University on a scholarship.

He was out running, when police said Jones and two others shot him in a thrill kill.

As part of the plea deal, Jones agreed to testify against Chancey Luna - the man police said actually pulled the trigger.