Scott Greenberg, Fla. prisoner, kills cellmate by stuffing toilet paper down his throat, report says

(CBS/AP) PINELLAS COUNTY, Fla. - Scott Alexander Greenberg, an inmate at the Pinellas County Jail in Florida, is accused of killing his cell mate by stuffing wet toilet paper down his throat and strangling him.

According to a police report, Pinellas County Detention deputies responded to a call of a "man down" early Sunday morning and found 48-year-old Kelly Harding unconscious in his cell. Pinellas County Sheriff Bob Gualtieri said the 28-year-old Greenberg had stuffed wet toilet paper down his throat and strangled him in a cell.

Harding was transported to a local hospital where he was later pronounced dead.

During an examination of Harding's body, an emergency room physician found wet toilet paper lodged inside the victim's throat.

"They removed what now constitutes two 3-ounce containers of toilet paper that had been jammed down Harding's throat," Gualtieri told WFTS-TV.

According to the station, this is not the first time Greenberg has been accused of using toilet paper in the death of a victim. Greenberg was reportedly facing second-degree murder charges in the 2012 death of his girlfriend, Jennifer Zale.

Authorities say Greenberg strangled Zale and stuffed toilet paper down her throat.

"[Greenberg] yelled to another inmate in the pod, 'I did it. It is done,'" Gualtieri told WFTS of Sunday's incident. "And when the other inmate asked him what he had done, he replied, 'What I am in here for.'"

Greenberg is charged with first-degree murder in the death of Harding.