Thomas Wallace, 61, was found guilty of first-degree murder in the death of 80-year-old Kenneth Peterson. Wallace represented himself in the monthlong trial, during which he argued self-defense.

That man was identified as Thomas Wallace. After the murder, the victim’s missing pickup truck was later found by undercover detectives at a motel near Interstate 17 and Indian School Road.

Read about the arrest of Thomas Wallace, a Phoenix man accused of killing and dismembering his 80-year-old roommate Kenneth Peterson. An Arizona man who allegedly killed his 80-year-old roommate later ...

The Maricopa County Attorney’s Office announced that Thomas Samuel Wallace, 61, has been sentenced to to natural life in prison. Skip to content. Your Life Arizona. Pool Safety Tips.

Thomas Wallace, 58, allegedly hocked a chainsaw that had “an odor of decomposition” and pieces of flesh, ligaments and other biological matter on it.