East Baton Rouge Sheriff Sid Gautreaux would not comment on a possible motive or say whether Sharpe, also a white man, knew the victims.
Louisiana man accused of killing 3 in string of attacks
"We were close, I didn't see him every day, but we talked occasionally and I kept up with him," he said. "I'm in shock of what he allegedly did, but I'm also sorry for the families that were impacted by this."
Plumbing company owner charged in 3 Louisiana slayings