PALM COAST, Fla. (WESH) - The man accused of killing a Palm Coast convenience store clerk in February said in court Tuesday that he will represent himself without an attorney.

Joseph Frank Bova II, a 25-year-old drifter, is accused of gunning down Zuheily Rosado, 32, inside the Mobil gas station where she worked on Feb. 22. He was arrested Thursday in Boca Raton, and investigators say he made incriminating statements.

A customer discovered Rosado's body on the floor of the State Road 100 store in Palm Coast. She left behind six children.

Flagler County Sheriff James Manfre said authorities still don't have a motive.

"I think that's what makes this case even more unsettling," he said.

Surveillance video showed a man entering the gas station and firing one shot behind the counter.

Days earlier, Rosado said she was threatened by a man inside the store.

Bova lived in a Palm Coast apartment at the time of the shooting but left the area afterward and has been living in his car.

Investigators said he used a unique a SCCY 9mm semi-automatic handgun that was bought at a gun store in Daytona Beach. It was found in his car in Boca Raton.

Bova does not have a criminal record.