The suspect who allegedly ambushed firefighters on the job Sunday in Coeur d'Alene, Idaho, had contact and a brief discussion with them before opening fire with a shotgun, killing two and critically injuring a third,

Firefighters were ambushed by a gunman while responding to a brush fire in Coeur d'Alene, Idaho, on Sunday, according to the local sheriff's office.

The man suspected of shooting two firefighters dead and wounding a third after setting a blaze along a popular mountainside trail in Idaho was described by authorities on Monday as a young drifter whose motives remained a mystery a day after the ambush attack.