INDIANAPOLIS — Sunday would have been the 26th birthday of Trevon Mann, a young Indianapolis father who was found murdered almost seven years ago. On a cold night in January 2018, Mann's body was found horribly brutalized inside an abandoned unit at the Town and Terrace Apartments, which are located in the 4000 block of Stratford Court. At the time of his death, Mann had just turned 19 and become a father. With his newfound duty as a dad in mind, Mann decided he couldn’t keep running the streets like he had been anymore. ”To me, I think Trevon may have known a little too much about what things was going on out here on 42nd,” said his mother, Cathy Mann. ”To me, Trevon was loyal to the wrong people.” Over the years, Cathy and IMPD homicide detectives have suspected longtime friends and other acquaintances may have killed Mann in retaliation for other criminal activity. ”It was at least 10-12 people involved in the whole murder of Trevon, the taking of him, the murder and everything,” said Cathy, recalling the schools her son attended. ”Warren Central. Renaissance. Ran the neighborhood, ran the streets with. Like I said, they sat at my table, they ate, they stayed the night, I’ve babysat some of their siblings. So, it's not like I didn’t know most of them.” Mann's killers likely needed to seek permission to dump his body off — and leave a crime scene behind in doing so — at what some believe to be a gang-controlled apartment complex. ”They beat him," Cathy said. "They set him on fire. They shot him in the head eight times, pulled his teeth out and set him on fire. He was a son. He was a father. He was a nephew, a cousin. And even though my son ran the streets, he was just a typical teenage boy. He didn’t deserve to die like that.” Cathy said she’s tracked the names of the people involved in her son’s murder. Some have died, and some have been jailed. Others are still circulating throughout the east side. Cathy added that she's come face-to-face with some who know what happened to her son. Some have even told her they know why he was killed. “There’s a coldness," Cathy said. "If you can walk past someone and know that you took their loved one’s life, and you have no emotion, no feeling, it's like there’s an icebox in them.” If you know anything about the murder of Trevon Mann in January 2018, and the dumping of his body in the Town & Terrace apartments, call Crime Stoppers of Central Indiana at (317) 262-8477. Your information can lead to a $1,000 reward.