BARDSTOWN, Ky. (WHAS11) – Police now have a clearer picture as to what happened to 17-year-old Cameron Williamson who was shot and killed early Monday morning.

Police say Williamson met Alexis Gribbins and Damion Murphy on Instagram to set up a marijuana buy.

Police say Gribbins and Murphy picked Williamson up and drove him to the business on East Stephen Foster Avenue where officials say Torique Griffin and Shelmontay dams met them there, opened the car door and attempted to rob Williamson. They’re accused of firing the gun once, hitting Williamson in the chest.

Police say Gribbins and Murphy drove Williamson to the Five Star gas station about a half-mile away and called for help.

Police confirmed Gribbins and Murphy also helped them to identify Griffin and Adams as the shooters. They were arrested in Campbellsville.

Cameron Williamson

“To have four people in custody in less than 12 hours after the event, I think that’s pretty good on my detectives and my officers who are out there beating the bushes too,” Bardstown Chief Steve Uram said.

Chief Uram told WHAS11 News that Nelson County is fast-tracking this case.

He says the grand jury will hear the case on Wednesday.

Houglin-Greenwell Funeral Home is handling Williamson’s funeral arrangements.