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ANTHEM, Ariz. -- An argument between two fathers picking up their kids at an Arizona kindergarten turned deadly, with one man allegedly running down and killing the other with his car.

The Arizona Republic says 31-year-old Anthony Parrinello faces a second-degree murder charge in the death of 42-year-old Carmello D'Alessandro.

Police say the conflict began in the parking lot of Canyon Spring School in Anthem, with heated words and shouts of "Let's settle this down the street," according to witnesses.

Parrinello then challenged D'Alessandro to a fight at a nearby Walmart, witnesses said.

Police say that when D'Alessandro didn't show up at the site, Parrinello started hunting him down in his blue Ford Excursion.

A passerby later found D'Alessandro lying in the street two blocks from the school after being run down by a vehicle. He died at the hospital.

Police say Parrinello's vehicle had been wiped off when they found him, but a search turned up blood and other evidence.

The reason for Monday's fight is unclear, police say.

The pair had tangled before, as far back as 2007, prompting D'Alessandro to file a protective order against Parrinello.

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