UPDATE: Cop cites three prior threats in Florida shooting

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A Florida detective says a white man charged with fatally shooting an unarmed black man in a parking lot had threatened three other drivers previously.

Pinellas County sheriff's Detective George Moffett said in court records released Monday that a septic truck driver told him Michael Drejka threatened to shoot him and used racial slurs three months ago when the driver parked in the same handicapped-accessible parking space that victim Markeis McGlockton's family parked in on July 19.
  
Moffet also said that in 2012, drivers involved in two separate road-rage confrontations with Drejka said he pointed a gun at them. Moffet said that in one of the cases, the teen driver declined to press charges. In the other, the woman driver left the scene before the officer could get her information. The detective said that in both cases, Drejka denied pointing a gun but one was found in his car.
  
The 47-year-old Drejka was charged Monday with manslaughter for killing the 28-year-old McGlockton. He is being held on $100,000 bond.