Sumpter Township police are investigating after an elderly man was assaulted inside a trailer home.
It happened Friday evening on Arizona Road in Belleville, just outside Sumpter Township.
Police say 22-year-old Thomas Charles Cahill, the grandson of the 82-year-old victim, is charged in the case.
Police say the elderly man was bludgeoned with a hammer and doused with accelerant. Police say it also appears the suspect tried to light the victim on fire.
The victim is hospitalized in critical condition.
Police say Cahill is facing assault with attempt to murder charges. His probable cause conference is set for December 14 with a preliminary examination scheduled for December 21.
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