The remains of several cats have been found outside an Escondido home after the owner of a cat named Leonard used a GPS tracker to locate his pet.

Leonard has not been found.

His owner, who asked that we protect his identity, told NBC7 his 13-year-old tabby went missing last Wednesday. On Friday, he contacted the Escondido Police Department and the San Diego Humane Society.

“They found several cats alive and dead,” he said. “I was told zip ties were involved, but they have not found Leonard.”

He believes Leonard was picked up in his neighborhood and driven the more than two-mile distance to the large compound at the tip of Reed Road.

A Humane Society spokesperson confirmed an animal cruelty investigation is underway and the remains of several cats were recovered during a series of three searches of the property.

Neighbor Tracey Fishell told NBC 7 if the accusations that someone killed the cats are true, then the person responsible should "get off the planet. You don't belong here."

Fishell said she put a GPS device on her cats when they moved to the area because she was afraid her pets would get lost in an unfamiliar place. Her cats have always come home safely.

No arrests have been made.