Kay and Kimberly Morrison

81-year-old Kay Morrison and her daughter, 54-year-old Kimberly Morrison.  Photos: Nez Perce County Sheriff's Office


According to the Nez Perce County Prosecutor's Office, the investigation into the death of 87-year-old Kenneth Morrison allegedly shows that both Kim and Kay played a part in drugging Kenneth and then suffocating him in their home. Kenneth was Kimberly's father and Kay's ex-husband.

Investigators allegedly learned via text messages that Kim and Kay developed a plan to give Kenneth Lorazepam and Liquid Morphine without his knowledge over the course of several weeks.

According to the probable cause document, Kay has been allegedly “dosing” Kenneth for several years. Then on January 7, 2022, Kim and Kay taped Kenneth to a wheel-chair and suffocated him with a bag over his head. After Kenneth was deceased, it is believed his body was most likely burned in the rear of the shop.

“It is a dark day in our community when people do this to their own family,” said Prosecutor Justin Coleman. “This was a long term, coordinated plan on behalf of the defendants that included attempts to poison the victim which eventually lead to him being tied down and suffocated,” continued Prosecutor Coleman.

Both defendants appeared in front of Magistrate Judge Seubert on Wednesday and their bond was set at $1 million each.

Original Story 

LEWISTON - Lewiston Police Detectives arrested 81-year-old Kay Morrison and her daughter, 54-year-old Kimberly Morrison on Tuesday for the alleged murder of Kenneth Morrison; who was Kimberly's father and Kay's ex-husband.

Lewiston Police say the arrest took place following the execution of a search warrant on the Morrison's home in the 1100 block of Harvest Road in Lewiston during the early morning hours of August 16, 2022.

Detectives began investigating Kimberly and Kay after 87-year-old Kenneth was reported missing in March of 2022. The investigation uncovered that Kenneth had not been seen since January 2022.

Lewiston Detectives interviewed Kay and Kimberly following the execution of the search warrant and ultimately took them into custody for the murder of Kenneth, determined to have occurred on January 6, 2022.

An FBI Evidence Recovery Team, Idaho State Police Detectives and the Quad Cities Drug Task Force assisted with tremendous resources during the on-going investigation, say Lewiston Police.

Anyone with further information can contact lead Detective Joe Stormes at the Lewiston Police Department at 208-746-0171.