A man is on trial in a shooting death outside a Philadelphia concert being held to promote peace and stem violence in the city almost three years ago.
Twenty-four-year-old William Greene is charged with murder, conspiracy and robbery in the August 2014 shooting death of 20-year-old Alexis Guevara outside the Dell Music Center in the city's Fairmount Park.
The Philadelphia Inquirer reports that a friend of the victim testified Tuesday that Guevara was arguing with another man when Greene walked up, tried to rob him and then shot him.
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Defense attorney Gary Silver challenged some witness identifications of the crime scene in police photographs.
The paper said Greene on Monday rejected a prosecution offer of a 30- to 60-year sentence in exchange for a third-degree murder plea.