Police need help trying to find next of kin in Ontario bank robbery

ONTARIO, Ore., (KBOI) -- Local and federal authorities are trying to locate next of kin for a man who they say shot himself soon after robbing an Ontario bank earlier this month.

Oregon State Police says it's "exhausted all available means to try and find relatives" for Joseph Thomas Johnston, 71. Police say Johnston is suspected of robbing the Bank of the West bank April 10, but died after shooting himself by the side of the road south of town.

His last known residence was in Mohave Valley, Ariz., where he lived alone in a mobile home park. He left March 1 in his 1987 Dodge pickup enroute to an unknown location in the Pacific Northwest to see a friend named "Paul" who was reported ill and being cared for by the friend's daughter. Investigators learned Johnston was diabetic and his pickup contained 10 oxygen tanks used to help him with personal medical problems.

Johnston has numerous ties throughout the northwest including Idaho. Investigators don't know if he has any siblings and unconfirmed information indicates his parents are deceased and he may have been married in the past.