Shawn Tompkins brother-in-law and student, Sam Stout, says the late Tompkins died in his sleep from a heart attack. Stout revealed the news of the autopsy to the London Free Press.

“I don’t know what to say,” Stout says. “It’s not supposed to be happen to a healthy 37-year-old person. Who would think he had to get checked out for that?”

Funeral arrangements are being made today, according to Stout. Details on the memorial service will be announced at

Tompkins’ management team at AMR Group have set up a special guestbook for those wishing to express their condolences to Tompkins family. They have also set up The Shawn Tompkins Memorial Fund to help assist Tompkins’ family with the funeral costs. Those wishing to donate can do so by sending an email to [email protected]

AMR Group’s president Gary Ibarra issued a statement expressing their sympathies.

“Shawn was more than a client,” AMR Group’s founder and president Gary Ibarra stated in an official release. “His passion and vision for MMA was infectious, evident by how he could motivate his fighters to become better athletes and people.

“On behalf of AMR Group’s athletes and staff, we extend our deepest sympathies to Emilie (Tompkins), Sam (Stout) and Shawn’s entire family. His spirit will live on in our hearts.”

Tompkins’ wife, Emilie Tompkins, has also issued a statement thanking the community for their support in this difficult time.

“Team Tompkins thanks everyone for all of the condolences that have come in since the tragic news of ‘The Coach’s’ death. Shawn would be touched beyond words by the outpouring of love from the MMA community. Sam Stout, Chris Horodecki, Mark Hominick, Kekoa Quipolta, Mr. and Mrs. Tompkins and I thank you for the respect you have shown us during this trying time. Shawn loved MMA and he considered all of you family. We will miss our Coach very much.”

Image via Dave Mandel for Sherdog

Update: MMA Junkie reports that heart conditions ran in Tompkins’ family.

Tompkins’ manager, Gary Ibarra of Athletic Management & Representation Group, today told ( that the renowned trainer had an enlarged heart and major blockages in his arteries that may have contributed to his death.

“Shawn’s family has a major history of heart issues,” Ibarra said.