ST. PETERSBURG — Police made four new arrests Thursday in connection with the violent May 12 armed robbery of a pain clinic.
One of those arrested is a masked gunman who pistol-whipped the manager, according to St. Petersburg police, then made off with $3,200 and three boxes of the prescription painkiller oxycodone.
The other suspects are a mother and her two sons, who police said helped plan the robbery at the St. Petersburg Pain Management and Urgent Care Clinic, 4900 33rd Ave. N.
Lindsey Sermon, 26, is the accused masked gunman, police said. He was acting out a plan hatched in part by Loretha Hart, 49, and her sons, police said.
"We have reason to believe she was the one who brought the idea together," said St. Petersburg Police Maj. Mike Kovacsev.
She was also a patient at the clinic and may have even visited hours before two gunmen robbed it, police said.
Hart was arrested along with sons Jacob Hart, 30, and Jared Murrary, 26, bringing the total number of arrests to six.
The first arrests were made Tuesday with the capture of Kenny Tyrone Baxter, 24, and Stewart Decory Lucas, 28. Baxter is accused of being the second gunman, the one who police said wasn't wearing a mask and whose face was seen on tape. Lucas is the accused getaway driver. But the robbers ditched that vehicle and got into another vehicle arranged by Hart and her sons, police said.
Sermon was arrested on charges of armed robbery and conspiracy to commit armed robbery, along with outstanding warrants for attempting to obtain a controlled substance by fraud and failing to appear in court.
Loretha Hart and her sons each were charged with conspiracy to commit armed robbery and principal to armed robbery. Each were being held at the Pinellas County jail Thursday night on $300,000 bail.