Jasen Smith, 44, died at a hospital after being found unconscious with a mysterious head injury following a Dave Matthews Band show, St. Louis Post-Dispatch reports. The Hollywood Casino Amphitheater concert happened on Wednesday, May 15 in St. Louis, MO, and Jasen and his wife, Darcy, were among the attendees. The couple were apart for seven minutes after the show while Jasen went to look for a t-shirt Darcy had lost at the venue. According to the Maryland County Police Department, he was found unconscious and suffering from a "serious head injury," bleeding from the ear, on a concrete pathway between the lawn and seating area at the venue at 11:10 PM. Maryland Heights Detective Sgt. Rich White said he died in the hospital the next day.

In a press release, which you can see below, the Maryland County PD goes on to say that a "white male in his late 20's" may have witnessed the cause of Jasen's injuries; the unidentified man, who claimed to be in the medical field, summoned a security guard to tend to Jasen.

Family attorney Chip Gentry told St. Louis Post-Dispatch that Jasen "suffered a blunt force injury to the back of his head that fractured his skull and a cut to his lip." Speaking on behalf of James' family, which includes 10-year old twin sons, Gentry said, "The family is certainly looking for any leads of anyone that saw what either hit Jasen or may have hit Jasen. They’re devastated. You can’t fathom going to a Dave Matthews Band concert on a Wednesday evening and being struck by something which cost you your life. We will certainly dig deep to hold those responsible accountable."

"Jasen was not the kind of guy that’s going to fight someone for a T-shirt," Gentry continued. "He was a great business man and father to his twin boys. He ran a really neat car lot in town that specialized in custom trucks. There were 1,000 people at his memorial service. He had a good reputation and a lot of friends. He coached his kids’ teams."

Anyone with information on the incident is asked to call the Maryland Heights police at 314-298-8700.