CLAYTON, Mo. (AP) -- The first-degree murder trial of a 15-year-old southeast Missouri boy is rescheduled for Feb. 9.

Owen Welty of Bloomfield was set to be tried earlier this month in St. Louis County on a change of venue. But Circuit Judge John Ross' office says Wednesday that the prosecutor and defense attorney sought a new trial date.

Welty is charged with killing 64-year-old Don McCollough in November 2006 at his farm east of Bloomfield. Welty was 13 at the time. He is being held at the St. Louis County jail.

He will be tried as an adult, and faces life in prison if convicted.

Experts have said Welty is schizophrenic and suffers from a depressive disorder with psychotic features. He would be among the youngest people ever tried as an adult in a Missouri murder case.

(Copyright 2008 by The Associated Press. All Rights Reserved.)