CHARLOTTE, N.C. -- Rapper Waka Flocka Flame is one of four people being questioned by police after a shooting in east Charlotte.

He came in voluntarily and is not considered a suspect, according to Charlotte-Mecklenburg Police spokesperson Rob Tufano. However, police are still investigating what role the 24-year-old rapper and his entourage may have played in the shootout.

Waka Flocka Flame stopped at the Car Stereo Warehouse on Independence Boulevard Wednesday afternoon to make some upgrades and improvements to his tour bus.

Instead, witnesses tell NewsChannel 36 that a group drove into the parking lot and opened fire.

Everybody was ducking. They were scared and knocking each other over. It was crazy, said one witness who was inside the store at the time of the shooting.

Charlotte-Mecklenburg Police officials tell NewsChannel 36 that one person was shot in the shoulder. That person is at Carolinas Medical Center with non-life threatening injuries, according to CMPD.

Police officials say they are getting conflicting stories from witnesses, but are starting to make some progress on the investigation. CMPD is looking for two vehicles that were seen leaving the crime scene an older model, white Land Rover and a newer model, white Dodge.

There have been several violent incidents in Waka Flocka Flame s recent past.

In January of 2010, he was shot during an attempted robbery.

In March of 2010, eight teens were shot after one of his concerts in Indiana.

In May of 2010, shots were fired in Charlotte after Waka Flocka Flame made an appearance at a club on Independence Boulevard.

NewsChannel 36 did reach Waka Flocka Flame s mother by phone. She said her son is not a gang member and played no role in Wednesday s shooting.

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