YORKTOWN HEIGHTS - Thousands of canines and dog owners turned out at FDR Park in Yorktown Heights for the SPCA of Westchester's Annual Walkathon. 

The goal of the event is to support the organization's life-saving animal rescue programs, from cruelty investigations to shelters for abused and abandoned animals.

While the walkathon was filled with smiles and wagging tails, pet lovers also had a recent tragedy on their minds: 25 dead cats that were killed in a violent manner were found hanging from a Yonkers tree last month.

The gruesome discovery was made by a city DPW crew during a routine cleanup at Overlook Terrace. The inhumane killing of animals is a felony crime.

The SPCA is hoping to raise $100,000 with the walkathon. Officials say part of that money could go toward catching the person or persons responsible for the dead cats in Yonkers.