WENATCHEE, Wash. -

Police say an elderly Wenatchee couple is dead following a murder-suicide.

The bodies of 81-year-old Charles L. Mason and his 97-year-old wife, Ruth Mason, were discovered Friday afternoon in their car, parked in the garage of their condominium.

There was a semi-automatic handgun in Charles Mason's lap.

KPQ-AM reports that notes and other items found in the home indicate the husband planned the killing, but it isn't clear whether the wife knew about it or was a willing participant.

The time of death was not immediately known, but investigators believe the shootings happened Friday morning. Autopsies were planned.

Washington Elementary School nearby was on lock down for a short time Friday while officers checked the area and determined that a gunman was not at large.