Three men have been indicted with the murder of 28-year-old Joshua Ryan Sweat of Weirton early Saturday morning in downtown Steubenville.

Antonio Clifford, 19, of Cincinnati is charged with aggravated murder and aggravated robbery.

Byron Johnson, 20, of Steubenville, and 19-year-old Patrick Thurman of Steubenville, are both charged with murder and complicity to aggravated robbery.

Sweat was shot to death last weekend in a parking lot that's just about 100 feet away from the Steubenville Police Station.

Assistant Jefferson County Prosecutor Jane Keenan said police have been working fast to get the suspects behind bars.

"They've been working day and night to locate these individuals and to get cooperating witnesses to come in and testify today," said Keenan.

Keenan said police believe Sweat came over from Weirton to the empty parking lot in downtown Steubenville to meet with the three suspects for a drug deal.

But police said the suspects robbed Sweat and things quickly turned deadly.

"These three individuals decided to, instead of selling him drugs, to rob him, and it was a robbery that went bad," said Keenan. "And the victim was shot one time in the back of the head."

Police said Clifford is the one who actually shot and killed the victim.

"He is who we believe to be the triggerman in the shooting," said Keenan. "He is the individual indicted with the death penalty specification."

All three men are behind bars in the Jefferson County Jail, awaiting their arraignment, which is set for August 9.

Natalie Pasquarella, NEWS9