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MEMPHIS, Tenn. — A man was rushed to the Regional Medical Center on Tuesday night following another shooting on a Memphis interstate, and police don’t know where the gunfire came from.

The victim, 21-year-old Levon Miller, told police he had just left a gym on Poplar Avenue around 9 p.m. and was in the eastbound lanes near I-240 and Highway 385 when he heard gunfire and felt pain in his back.

A bullet struck him in the back, causing him to lose control of the vehicle. A good Samaritan who heard the shots and saw Miller’s car on an embankment pulled over to the help near Ridgeway.

The victim’s grandma, who didn’t want to share her name with WREG, is grateful for that good Samaritan.

“You don’t know who your angel is and his angel was right there for him,” she says.

She says she has no idea why anyone would want to hurt her grandson. He had been at the gym with some of his friends, but told police they didn’t get in a fight with anyone. His grandma asked if it was road rage, but Miller said he never cut in front of anyone.

Miller was rushed to the Regional Medical Center in critical condition where he was treated for his injury and was later downgraded to non-critical. He’s back at home recovering.

“By the grace of God, yes sir, he’s doing okay,” his grandma says.

According to investigators, 14 shell casings, all .223 caliber, were found on the interstate. The back window of the man’s Honda  Police was shot out and the car was “riddled with rounds,” a police report stated.

Neither the victim nor the man who helped him saw where the shots came from. Police said no cameras were posted in the area.

Call Crime Stoppers at (901) 528-CASH if you can help police.