South King County fire crews fought a huge blaze Monday morning at the Federal Way home where earlier this month an 85-year-old woman is alleged to have shot her two roommates, one of whom died.

The house, in the 2000 block of Southwest 306th Lane, was fully involved when firefighters arrived, South King Fire said on Twitter at about 6:30 a.m. Monday. By 10 a.m., crews had put the fire out and entered part of the home, but “due to the amount of damage they are unable to effectively search the entire house,” South King Fire tweeted.

Federal Way Police spokesman Cmdr. Kurt Schwan confirmed it was the house where 85-year-old Beverly Lorraine Jenne is alleged to have shot and killed Janet Oyuga and wounded Oyuga’s sister. He said detectives had concluded processing the crime scene before the fire broke out.

Police officers called to the home Dec. 19 found the two sisters shot and Jenne on the bed with an electrical cord around her neck, according to Federal Way police.

The homeowner told police Jenne had lived in the house since it was built in 1979, but it went into foreclosure in March and was sold at public auction in November 2019. The new owner said he was renovating the home and had entered into a lease-to-own agreement with the two sisters, who decided to allow Jenne to live there until she found another home.

But, according to police, Jenne was not appreciative and left a note in her car saying she was forced to kill Janet Oyuga because “Janet is not a very nice person” and “I think she was getting ready to [e]vict me and I’m 85 and no place to go.”

Jenne was charged last week with first-degree murder and first-degree assault. She remains in the King County Jail in lieu of $1 million bail.

King County fire investigators have not yet released a cause for the blaze, which started early Monday. No injuries were reported.