Daniel Lovato was 39 when an evening at Summit Music Hall in downtown Denver ended in violence. On April 27, 2013, during a Kottonmouth Kings concert, Lovato became involved in an altercation around 8:32 p.m. and was struck, fell to the ground and stopped breathing. He was taken to Denver Health Medical Center and died of his injuries on May 1, 2013; his death was ruled a homicide.

Witnesses and investigators say the man who struck Lovato was escorted out by security and last seen walking away from the venue in an unknown direction. The person of interest was described as a Hispanic male about 30 years old, 5 feet 9 inches to 5 feet 10 inches, stocky, with short hair and tattoos on both arms; he reportedly wore a black shirt with red cursive writing and a black hat with a brown bill that night. No arrests have been announced and the case remains unsolved.

If anyone was at the Summit Music Hall that night or recognizes the description, please share what was seen or heard.