Law enforcement authorities in Coeur d'Alene, Idaho, are holding a news conference to share the latest on their investigation after a suspect allegedly ambushed firefighters on the job, killing two of them and critically injuring a third.

Two Idaho firefighters were killed and another was critically injured in a shooting while responding to a fire near Coeur d'Alene in the state's north on Sunday afternoon, officials said. The latest: A man was found dead near a firearm on Canfield Mountain,

The man who shot dead two firefighters and wounded a third after setting a blaze near a popular mountainside trail in Idaho was described by authorities on Monday as a young transient whose motives remained a mystery a day after the attack.