Clearwater, Fla. police tell TMZ they are investigating threats made against Hulk Hogan and his family, allegedly made by members of John Graziano's family.
The St. Petersburg Times reports that police have listened to threatening voicemails. Clearwater PD spokesman Doug Matthews tells us there's an "open investigation" into the calls.
Graziano was seriously injured when the souped-up car driven by Hulk's son Nick crashed.
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