CHICAGO (CBS) — Police continue to search for the owner of a pit bull that killed another family’s smaller dog on the Montrose Dog Beach last month.

As WBBM Newsradio’s Dave Berner reports, during the early spring heat wave on March 17, Audrey Fisher and her 12-year-old daughter took Willy, their Pomeranian mix, to the dog beach so he could play with his favorite pink ball.

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LISTEN: WBBM Newsradio’s Dave Berner reports

But the pit bull wanted that ball, and attacked the 8-pound dog.

“A pit bull came out of nowhere and just attacked him, grabbed him by his belly and shook him violently,” Fisher said last month.

The animal died.

“I was horrified. I was helpless,” Fisher told CBS 2’s Pamela Jones last month. “And there was nothing I could do, but hold my daughter and shield her from this.”

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Afterward, the family was left with a $5,700 vet bill because the owner of the pit bull refused to identify himself and left the beach.

A witness to the incident said on the dog beach Web site,, that he talked with the pit bull owner, and that the owner just said, “the other dog started it.”

“He showed zero remorse and was walking around calmly chatting with others who were unaware of what had happened. It seemed obvious that this was ‘normal’ behavior for his dog and him,” the witness said on

The witnesses said the man slowly slipped away, while five or six people on bikes and in cars tried to follow him and get his license plate number.

“He was abusive, then, in his behavior and language to anyone who approach to talk to him about the killing,” the witness wrote. “He shrewdly and aimlessly walked around for almost an hour in the park while the police were called 10-12 times and he got away.”

The other dog owners took photographs of the man with their cell phones, and posted them on fliers and on the dog beach Web site.

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Police hope they can use the pictures to find the man. Anyone with information is asked to call police.