Families in Orange County handed their dogs to a trainer for a few weeks of board-and-train, the kind of program that promises to send a better-behaved dog home. Eleven of those dogs never came home at all. In June 2026, a jury convicted the man responsible, closing a case whose details are as disturbing as any in recent memory.
Kwong “Tony” Chun Sit, 54, of Irvine, ran a business called Happy K9 Academy, offering behavioral training and overnight boarding. Over a stretch in June 2025, eleven dogs in his care died. Prosecutors said the animals were left in small crates inside a hot van, where they succumbed to heat stroke. Then, rather than tell the owners, Sit set out to erase what had happened.
One family’s version of the same story
For the people who trusted him, the horror arrived as a short, bewildering message. Aimee Gutierrez had adopted a nine-month-old Belgian Malinois named Saint only about a month earlier. When Saint didn’t mesh with the two dogs the family already had, they enrolled him with Sit for extra help, signing up for a roughly three-week program. Near the end of it, Gutierrez’s husband received a text saying Saint had died in his sleep.
There were no real details, no chance to say goodbye, and, the family later learned, no consent asked before the dog was cremated. Gutierrez has described being left with a permanent hole where answers should be, never able to know exactly what happened or why. She was not alone. Saint was one of eleven dogs to die, and the owners would eventually learn the names read together like a roll call: Rosie, Shadow, Ziggy, Miko, Theo, Puffin, Cody, Zoe, Luna, Bang Bang, and Saint.
The cover-up
What turned a case of lethal neglect into something a jury would call a deliberate scheme was what came next. Prosecutors said Sit impersonated the dogs’ owners to arrange cremations, and that his girlfriend, Tingfeng Liu, 23, helped him drop the bodies at different crematoriums in an apparent effort to spread out the remains and avoid suspicion. When authorities caught up with the couple, they were reportedly packed and ready to leave, and bail was set at $550,000 each.
The verdict
At trial, a jury convicted Sit of 11 felony counts of animal cruelty, seven misdemeanor counts of attempting to destroy evidence, and one misdemeanor count of destroying evidence. According to the Orange County District Attorney’s Office, he faces a maximum sentence of just under 14 years. Liu was convicted as an accessory to a felony along with evidence-destruction counts and faces up to four years.
No verdict gives those families their dogs back. But the conviction draws a hard line under a defense that might otherwise have been shrugged off as a tragic accident, treating the deaths and the elaborate concealment as the crimes prosecutors argued they were.
What this should teach anyone who boards a dog
It is worth being clear-eyed about how rare this is. The overwhelming majority of trainers and boarding facilities are conscientious people doing careful work, and one monstrous case does not indict an industry. But it does underline a few habits worth building before you hand your dog to anyone.
- Ask to see where dogs are actually kept, not just the lobby or the training yard. A facility with nothing to hide will show you the crates, the runs, and the vehicles used to move dogs.
- Get updates in real time, ideally with photos, and treat a facility that goes quiet or gets evasive as a warning, not an inconvenience.
- Understand the daily routine, including how dogs are transported, how long they’re crated, and what the plan is in extreme heat. Vans and parked vehicles turn deadly fast.
- Check credentials and references, and lean toward trainers who welcome you observing sessions rather than requiring you to drop the dog off and disappear for weeks.
Board-and-train can be genuinely useful. The lesson here is not to avoid it, but to earn your trust before you extend it, and to keep a line of sight into your dog’s care while they’re away.
