MADISON, Ill. - The Madison County State's Attorney's Office charged a 24-year-old East St. Louis man for the murder of a Mizzou student found shot to death in his car days before Christmas.

According to court documents, the body of 21-year-old Jarrett Mosby was discovered around 12:45 p.m. inside his car, which was parked at the intersection of W. 2nd and Bissell streets. Mosby, a Collinsville resident, had been shot several times with a handgun and was pronounced dead at the scene.

The Major Case Squad of Greater St. Louis was called into action and eventually determined Mosby agreed to meet Deneshion Swope in the early morning hours of December 23. Investigators believe Swope was looking to purchase marijuana from Mosby, an acquaintance.

The two men eventually got into an argument and Swope allegedly shot Mosby near 10th and State streets. Swope then moved the car to where it was later discovered.

Swope, who was on federal probation for gun charges, is in custody at the St. Clair County Jail in Belleville. He'll be moved to the Madison County Jail in Edwardsville where he'll be held on first-degree murder charges with a $500,000 bond.

If convicted, Swope faces between 20 and 60 years in prison, and must serve 100 percent of his sentence.