The parents of 6-year-old J.J. Mireles said their son, who is diagnosed with epilepsy, is in desperate need of his missing therapy dog, Stevie, the Boston terrier.
They said a side gate that was chained was found wide open after the family realized Stevie was gone in early June.
After searching shelters, veterinary offices and Facebook, John and Julie Mireles are making a public appeal for his return.
"We just really need her back. It's no longer a want, it's a need," said Julie Lozoya Mireles.
Mireles said she and her husband were skeptical that certain dogs can sense epileptic seizures before they occur.
In hopes that was true with Boston terriers, they adopted Stevie from a Facebook posting about two years ago.
Mireles said, "Three weeks after we got her, he had a seizure. She let us know."
She said Stevie would bark and grow visibly anxious.
J.J.'s mom also said his seizures decreased -- his last one occurring in April.
"When she was around, he didn't stop breathing," Mireles said. "Please bring her back," J.J. said. "I miss her."
A generous KSAT viewer has offered $200 if anyone found and returned Stevie. Anyone with information is asked to email email@example.com