The man accused of a deadly shooting in Marana has now been indicted for murder. Marcus Dickson faces a second-degree murder charge.
Dickson was originally arrested for manslaughter after he shot and killed Martin Padilla last month in a shopping center parking lot on Tucson's northwest side.
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Court documents show Dickson honked at Padilla when he didn't turn right after the light turned green.
Dickson followed the car into the parking lot.
Both men got into a fight before Dickson shot Padilla twice and killing him.
Padilla's family says he was teaching his oldest son how to drive.
