A Beaverton couple owe their lives to their dog, who alerted them to a fire outside their apartment on northwest Cornell Road Thursday night. Kelli Landis says that just after midnight, her dog Marcus started barking, alerting her and her husband to the flames in time for them to join other residents in putting the fire out. 

Tualatin Valley Fire & Rescue spokesman Brian Barker says someone deliberately set the fire, but no suspect has been identified.