Lewis and Clark County Sheriff Leo Dutton released the cause and manner of death for the man found in a submerged vehicle near Craig in April.
Dutton said John MacArthur, 58, died by suicide. The official cause was drowning.
MacArthur’s body was found in a completely submerged 2019 Tacoma pickup-truck along with a deceased dog in the Missouri River on April 22.
He had a Minnesota driver’s license, but also had an address listed in Cascade.
If you or a loved one you know is struggling with thoughts of suicide, help is available.
The Suicide Prevention Lifeline is available 24/7 at 1-888-273-8255 and the Text Line can be accessed by texting “MT” to 741 741.
More information about suicide prevention in Montana can be found here.