From Inside Edition.

Two hikers confronted a man who walked away from a tree and is suspected of igniting the blaze. As the fire in Los Angeles’s Runyon Canyon grew, a crowd gathered. Fire trucks and a chopper arrived to fight the fire. Good Samaritans made sure the suspect did not flee. The suspect was handcuffed by a park ranger. Davanh Dimarco and her boyfriend Scott Mitchell are the hikers who stopped the suspect from getting away. They spoke with Inside Edition.