KEY WEST, Fla. (AP) _ A 78-year-old man thought his roommate was ignoring him and didn't realize the other man had been dead on the kitchen floor for two months, police said.

Thomas Warren turned himself in for psychiatric treatment at dePoo Hospital after police discovered the body of 43-year-old William Everett Delaney on Tuesday, authorities said.

''I guess he might have had some kind of mental block where he didn't want to believe the guy was dead,'' said police Detective Duke Yannacone.

Warren told police he recalled Delaney falling in the kitchen about two or three months ago. He said he often asked Delaney if he wanted food or drink or if he needed to go to the hospita.

''He said the guy was very stubborn and wouldn't answer him,'' Yannacone said.

No foul play is suspected and no charges against Warren are expected, Yannacone said. Police said alcohol abuse is suspected as the cause of death.

Police were called by a welfare worker who had gone to check on Warren.