Howell Trei Donaldson III was formally indicted on four charges of premeditated first-degree murder in the Seminole Heights killings, the Hillsborough County State Attorney's Office announced Thursday.

Donaldson was formally charged in the deaths of Benjamin Mitchell, Monica Hoffa, Anthony Naiboa and Ronald Felton, State Attorney Anthony Warren said.

Read the indictment

Donaldson has been held without bond since his arrest Nov. 28.

Stay with for updates.