Michael Leach was accused of intentionally shooting and killing his son, Matthew Leach, 38, inside a motel room the two were sharing during a vacation in Old Forge.
At the time Leach said he thought he shot an intruder.
When he is sentenced in August, Leach faces a six month sentence, 5 years probation, restitution to cover funeral expenses and must receive treatment for his psychiatric illnesses.
In court Wednesday it was revealed Leach was having reoccurring nightmares, specifically about a figure entering his home all in black.
Both the prosecution and defense doctors evaluated Leach and found that he had a nightmare the night he killed his son.