PITTSBURGH - Police have put a rush on DNA testing in the case of two sisters killed in East Liberty.
Police are testing the person of interest’s DNA. They said they have his DNA on file from previous crimes.
Dr. Sarah and Susan Wolfe were found shot to death earlier this month inside their Chislett Street home.
The person of interest is a neighbor, according to police. He was questioned and released from police earlier this week.
Sources close to the investigation said the man knew both of the women and “certain behaviors” caught their attention.
A search warrant was executed at the neighbor’s home Wednesday night. Sources said the man who lives there had a pair of sweatpants that belonged to one of the sisters. A neighbor also reportedly witnessed the man throwing a pen into a trash can.
Detectives said that pen had “Iowa State Rep” written on it, and the women’s sister is a state representative in Iowa.
Investigators said Susan and Sarah Wolfe were shot in the head. Investigators found their bodies in the basement of their home earlier this month after friends went to check on Susan Wolfe when she did not show up for work. Police said one of the sisters was found naked, and her body was doused in cleaning supplies, including bleach and laundry detergent.
Channel 11 reporter Courtney Brennan spoke with the sisters' father on Tuesday night.
"It was atrocious,” said the women’s father, John Wolfe. “The investigators are under a great deal of pressure to solve the crime, but I don't want to have someone charged just so they can solve the thing."
A witness sought by Pittsburgh police was questioned by detectives Tuesday.
Detectives said the man in the photos [LEFT] was not a suspect but merely a witness. Officers said the man was on board the same Port Authority bus as Susan Wolfe. Police would not say whether the man was able to provide them with any new information.
In Pittsburgh, friends are remembering the sisters with a makeshift memorial outside the East Liberty home. Flowers change daily and are a bright spot where the terrible crime occurred.
The family had a memorial service for the sisters in Iowa last Friday.
So far, no charges have been filed.