LOS ANGELES - A convicted drug dealer has pleaded not guilty to killing a 20th Century Fox executive whose remains were found in the Southern California desert 2 1/2 years after he vanished.

City News Service reports John Creech entered the plea to a murder charge Thursday. He could face 25 years to life if convicted.

Creech is charged with killing 57-year-old Gavin Smith, who disappeared in Ventura County in 2012.

Hikers found his remains 70 miles away in the Antelope Valley last October.

A law enforcement official has told The Associated Press that Smith had a relationship with Creech's wife after meeting her in drug rehabilitation.

Creech currently is serving an eight-year sentence behind bars on a drug charge.