Police say they are still searching for more evidence in the murder of Suffern gym teacher Jami Erlich.

Clarkstown detectives put up fliers around the apartment complex where Erlich was killed asking for help in finding a missing Dell C521 computer tower. Officials have not said if it belonged to Erlich or accused killer Eric Lau.

In addition, police are asking for information about the whereabouts of Lau between 8 p.m. and 11 p.m. on Nov. 29.

"I don't think many people can come forward," says neighbor Carmine Mastropolo. "At that hour, this place is quiet."

Anyone with information is asked to call 845-639-5840.