San Francisco judge declares mistrial in skateboard attack on security guard

SAN FRANCISCO (KGO) -- A skateboarder accused of attacking a security guard in San Francisco will walk a free man.

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A judge Tuesday said the jury deadlocked and declared a mistrial in the case of 24-year-old Jesse Vieira.

Prosecutors say Vieira beat Dan Jansen when he tried to prevent Vieira from skating around a high-rise.

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Jansen's family says he's now in an assisted living facility.