By Talia Kaplan

St. Louis County, MO (KSDK) - A Craigslist warning from a heartbroken pet owner.

He claims his dog suffocated and died of heat stroke while in the care of a boarder.

Graeme Purviance and his three-year-old dog Lexi were inseparable.

"She would sleep in my bed every night. Everywhere I went, she went," said Purviance.

But now he's without her after he boarded the dog in a South County home after responding to an ad on Craigslist.

Purviance says he boarded Lexi because he had a lot going on.

"We were looking for a house, we were in the hospital having twins, and twelve hours later we got the call about Fabian Teson that he got hit by a car in a hit and run," said Purviance.

The next day he got the bad news about Lexi.

"I just threw my phone down and cried," said Purviance.

He went to pick up Lexi.

"When I got there she was torn up and this lady told me she had no clue what happened and she was real persistent on me not coming to pick the dog up and her taking it herself to get cremated," said Purviance.

So Purviance went to investigate. He brought Lexi to Tesson Ferry Veterinary Hospital and on Friday he got the results.

The veterinarians said Lexi had rope burns and her skin was torn.

The veterinarians said, "Death was suspected to be a result of a combination of asphyxiation, hyperthermia and consequential heat stroke as a result of being tied up and tangled in the heat unsupervised."

Their full findings are attached to this story.

"I'm mad. Who would leave a dog outside on a hot porch, with no water, on a rope that's like a noose," said Purviance.

Newschannel5 tried contacting the boarder. We went to her South County home but, no one answered. We also called her. She answered the first time, said she still boards dogs, and when we identified ourselves as the news she hung up. We called several more times and left several messagesbut, she didn't return any of our calls.

"I hope that she is not allowed to board anymore dogs. I don't want this to happen to anyone else," said Purviance.

The woman is still posting ads on Craigslist.

Purviance contacted the Humane Society who referred him to The Missouri Department of Agriculture. He sent them all his documentation on Friday and they should be investigating this.