Ohio sniper Wess Roley intentionally started a bushfire to lure firefighters into the woods and killed them before killing himself in an unhinged act .

Roley, 20, died of a self-inflicted gunshot wound Sunday after attacking firefighters responding to the blaze he set.

Wess Roley, who authorities say took his own life after Sunday’s shootings, is suspected of killing two battalion chiefs in Sunday's ambush.