NAMPA, ID - Fire badly damaged a mobile home in Nampa and now fire investigators say the fire was set on purpose.

Flames broke out just before 9 p.m. Thursday on Second Avenue North in Nampa.

The stepson of the woman in the home frantically tried to help.

"I ran in there and I couldn't find her so I was looking around so and I couldn't breathe so I ran back out,” Cory Burdick said.

Burdick went inside after he saw smoke.  He smashed the windows to try to find her.

"I ran up to it and I threw something through it, because you know my dad works hard and I didn't want to see his whole house go down in flames,” Burdick said.

After throwing the rock, Burdick said he smashed the window with his bare hand, cutting his wrist on the broken glass.

Despite the cut, Burdick says he fought the fire with a garden hose until fire crews arrived.

Burdick says his stepmother started the fire.

"She had set the house on fire trying to kill herself,” Cory Burdick said.

Burdick says during the fire he and his father had trouble getting of a hold of her.

"He pushed her to the door right there,” Burdick said. “And then she pulled herself back. Because she wanted to go back in the house. She wanted to stay inside so I grabbed her like this and then set her down right here."

Police do confirm they are questioning a woman who lives in the home, but would not confirm the suspect’s identity.

Burdick says the fire burned right through the floor of the kitchen, and there is smoke damage throughout the house.

Damage is estimated in the thousands of dollars. 

Burdick's step mom was treated at the hospital for smoke inhalation.