By Marty Griffin

PITTSBURGH (KDKA) – After calling on a potential witness in the case of two sisters murdered in East Liberty, police say the investigation is at a standstill.

Monday, police released surveillance footage of a man who they thought might be a potentially witness in the case.

However, he went to talk to police Tuesday and wasn’t able to provide any new information.

Police say he sat in the bus, may have talked to Susan Wolfe briefly, but said nothing that mattered. He also got off the bus before she did, making unlikely he knew anything about her. Still, they had to talk to him.

Police say they don’t have any other leads.

Susan Wolfe, a teacher’s aide in Squirrel Hill, and her sister Sarah Wolfe, a UPMC psychiatrist, were each shot one time in the head at their Chislett Street home.

Their bodies were found by police in the basement the next day. One of the sisters was found naked and doused with bleach — but so far there is no evidence of sexual assault.

Police had said previously that they were searching for a man who appears to follow Susan Wolfe home after getting off the same Port Authority bus.

Police also said they are looking into Susan Wolfe’s possible relationship with homeless men.

Sources confirm she had a “deep compassion” for people in need. Sources also confirm detectives interviewed homeless men at local shelters — and were all over the sisters’ East Liberty neighborhood looking for any information, talking with neighbors.

Sources say police have gathered a significant amount of evidence, including DNA evidence, that police hope will be helpful.

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