LAKEWOOD, Colo. (AP) – Prosecutors will not file charges against an 87-year-old Alzheimer’s patient accused of killing his roommate at an assisted living facility until they know if he is competent to stand trial.

A Monday court hearing for Homer Castor was canceled by a judge, who gave prosecutors until June 1 to bring charges against him in the death of 76-year-old Gerald Propp. Police say Castor beat Propp to death on Feb. 21 in the room they shared at Atria Applewood in the Denver suburb of Lakewood.

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Gerald Propp (credit: Family Photo)

Gerald Propp (credit: Family Photo)

Police say Castor was difficult to understand and known to wander the facility at night. An earlier encounter between the roommates left Propp, a fellow dementia sufferer, with scratches on his neck.

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A judge ordered Castor to undergo a competency evaluation at a state mental hospital.

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