Richard Sells, a 43-year-old from Arlington, Texas, was shot and killed on October 11, 2015, during a parking-lot tailgate fight outside AT&T Stadium after the Dallas Cowboys lost to the New England Patriots. He was struck in the neck while trying to break up another altercation at the event.

Police arrested 28-year-old Marvin Rodriguez and charged him with first-degree murder and aggravated assault with a deadly weapon. Reports say Rodriguez had been involved in multiple altercations during the tailgate, that he pointed a gun at another man, and that Sells was ultimately the person shot. Bail was set at $200,000 and prosecutors sought serious penalties, including the possibility of life in prison if convicted.

Sells had been recently engaged and was expecting a daughter; his family and the community were deeply affected. Does anyone who attended that tailgate or who knew Richard have information that could shed more light on what happened that night?