Robbins, 56, of Oceanside, California, pleaded not guilty Wednesday to the charges in San Diego County Superior Court, said District Attorney Bonnie Dumanis.

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Then Wednesday, tragedy hit the team and the NFL community again when Seau was found dead in a bedroom of his Oceanside, California, home.

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Last year, Seau, 43, committed suicide in his bedroom in Oceanside, California, with a gunshot wound to the chest, prompting speculation about whether repeated hits to his helmet over his 20-year pro career could have been a contributing factor.

CNN: January 23, 2013 -- Updated 2220 GMT (0620 HKT)

From his days growing up in Oceanside, California to All America status at USC and superstardom with the San Diego Chargers and later with the Dolphins and Patriots, he was a force of nature on and off the field.

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Police in Oceanside and Carlsbad, California, are also investigating incidents there, Hassan said.

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He grew up to become a California real estate agent, living in Oceanside with his dog, Snoopy, his official biography said.

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