By Tony Hanson

PHILADELPHIA (CBS) — The reward now stands at $50,000 for information leading to the killer or killers of 46-year-old Constance Murray, who was found murdered in Pennypack Park early Tuesday morning. Police believe she was killed shortly after she left her home for a walk about 9 p.m. Monday evening.

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While police hope the increased reward, again $50,000, will prompt someone to come forward with information.

Investigators continue to work on tips already in and search for video. And they have returned repeatedly to the crime scene, yesterday using heavy equipment to clear away brush.

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Homicide Unit Captain James Clark says,”Obviously anything that would help with the investigation, but more specifically, we are trying to find her cell phone which still has not been found. So there is the possibility that during the struggle, you know, its in that area or if it’s not then now maybe we know we are dealing with a robbery. That’s why you are seeing all the digging and searching.”

Captain Clark says detectives have been going door to door trying to develop additional information.

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