KREMMLING, Colo. (CBS4) – A 62-year-old father and his 9-year-old son were found dead in a van in the high country.

The Grand County sheriff says it was a murder-suicide and evidence is missing.

The bodies of William and Jackson Ahrold of Denver were found Saturday. The van was in a rural area near the Colorado River southwest of Kremmling.

Sheriff’s investigators are looking for a handgun and several other items believed to have been taken from the scene by someone after the father and son died.

(credit: CBS)