The step-grandfather of Buffalo Bills running back C.J. Spiller shot four people, killing two, in Florida on Saturday morning, according to WCJB Channel 20 in Gainesville, Fla.

Hubert Allen, Jr. walked into Pritchett Trucking, his former place of employement, and shot David Griffis, who is in critical condition at a Gainesville hospital.

Allen then went to trucking company owner Marvin Prichett's farm where he shot and killed Pritchett and a farmhand who was there as well. Allen also shot Lewis Mabrey, Jr who is in critical condition as well..

He then returned to his home and killed himself.

Thoughts and prayers to the victims and the families in this tragedy.

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Terry McCormick covers the Titans for TitanInsider.com