Luis Ramirez was 33 when he was fatally shot on July 22, 2013, in Fort Worth, Texas. The shooting took place in the early morning after a heated argument at a ranch party; Ramirez was sitting in his truck parked near Northwest 35th Street waiting to leave when he was struck.

Police identified several witnesses who had been at the scene, but for months none came forward with information. Ramirez’s father later turned to social media, posting videos on TikTok about his son and appealing for tips. Those posts drew widespread attention and, according to the family, helped generate leads.

What details from that night or from the people who were at the ranch might still help explain who shot Luis and why?