There is a murder warrant out for 20-year-old Antonio Thompkins. Police are charging him with the murder of 22-year-old Antwan Smith, who was shot in the head Saturday night.

It happened during a large fight on 3rd Street. Police said gang signs were flashed, and 70 people were arrested in the scuffle that happened just after the Speed Street celebration was shutting down.

Eyewitness News discovered Wednesday that Thompkins has been arrested eight times since 2008. A few arrests were for violent crimes, but he's served very little time in prison.

Court documents show Thompkins was charged with robbery with a deadly weapon twice in 2009. The first time, in June, he pleaded guilty to a lesser charge of simple assault and was sentenced to 39 days in prison.

In the second case, from Christmas Day 2009, the charges against Thompkins were dropped.

An Eyewitness News crew went by Thompkins' most recent addresses Wednesday afternoon on Dunn Avenue, but no one was home.

Police said Thompkins is known to frequent the Grier Town area of east Charlotte and should be considered armed and dangerous.

Anyone with information is asked to contact the Violent Criminal Apprehension Team at 704-336-VCAT or Crime Stoppers at 704-334-1600.

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Previous Stories: May 31, 2011: Police Chief Says Uptown Is Safe, Despite Weekend Disturbance May 31, 2011: 1 Killed, 70 Arrested In Uptown Charlotte Fights