The last words Janice Guillory ever heard from her grandson, Preston, were recorded in a voicemail he left about 30 minutes before he was killed outside an Aurora convenience store. Preston Alexander Guillory. (Photo courtesy of City of Aurora) “He said, ‘I love you, Mom,'” Guillory said durin g a news conference on Friday. “He called me mom.” It’s been almost two years since 28-year-old Preston Guillory was shot and killed in the 12000 block of East Colfax Avenue in the early hours of June 21, 2024, and Aurora police on Friday announced the department is increasing the reward for information in the cold case to $4,000 for the next six months. “Investigators believe there were several bystanders in the area at the time of the shooting who have not yet spoken with police,” violent crimes section Lt. Sean Mitchell said in a statement. “We are urging anyone with information to come forward. Even the smallest detail could help us hold the person responsible accountable, bring justice for Preston and provide his family with the answers and closure they deserve,” Mitchell continued. Preston Guillory’s family gathered at the Aurora Municipal Center on Friday to publicly ask anyone with any information about his death to come forward. Their son, brother and friend was more than a victim in a news report, Janice Guillory said. He was an artist who loved to laugh and dance, was passionate about helping people and had a kind heart. Preston loved music, his grandmother said, particularly gospel and rap. He was a member at True Light Baptist Church in Denver and had celebrated his birthday just 16 days before he was killed. It’s difficult to not have closure, Preston’s uncle, Bryson Knight, said Friday. To wonder, every day, what happened to Preston. Related Articles How a missing Colorado woman’s son hopes AI can solve her 18-year-old cold case “Hopefully, since some time has elapsed, someone will have a heart,” Knight said. “Someone will have something come about within them to say, something took place. This is a young man who has a family. This is a human. No one should go out that way.” Knight acknowledged his nephew also had his share of struggles and said he asks himself why Preston was out so late. “The only thing we can do is hope and pray for resolve,” he said. “And the resolve we are expecting and wanting is someone to bring forth justice.” Anyone with information in the case can contact Metro Denver Crime Stoppers at 720-913-7867. Tipsters can remain anonymous and are eligible for a reward up to $4,000. Sign up to get crime news sent straight to your inbox each day. ...read more read less