The victim has been identified as Jerene Matta. An autopsy revealed she died from carbon monoxide poisoning.
Heavy smoke in a home on Greenway Street in Yakima had neighbors on the block concerned.
"I just see a lot of smoke coming out of the house so I'm like it's just a fire," said Ramses Hernandez. "But next thing you know, I saw the firefighters bring in their camping stuff and I was like 'woah this has to be a big deal.'"
"There was lots of smoke, lots of smoke pouring out of a hole that was already torn out of a roof," said David.
Firefighters were called to the area for a possible fire. The smoke stack led them to the house. They managed to make their way inside and put the fire out. That's when they discovered a woman's body.
"It's surprising you hear about these things happening, but they never really happen to anyone you know or close to home," said David.
Many of the neighbors KIMA spoke with did not know the woman who lived in the house. They said she mainly kept to herself.
Antonio Vasquez is a neighbor who is familiar with the area. He walks around the neighborhood often and said he's never seen her around.
"I've never even see the lady out here at all," said Antonio. "All these years I've lived around here, I've never seen a lady outside this house."
Fire investigators said the fire was most likely arson. The coroner will not release the victim's name. Her family has yet to be notified. An autopsy is scheduled for Monday.
More information on what caused the woman's death will be available after the autopsy. Anyone with information is urged to call 9-1-1.