Ben-Hanania could have faced life in prison if convicted of felony murder, Petchenik reported.
In July, a Fulton County grand jury returned murder indictments against Ben-Hanania and the man accused of selling the heroin, Kevin McCaffrey.
Authorities said they pursued the rare murder charge in a drug overdose case to send a message to the public.
McCaffrey also took a plea deal and is serving a four-year prison sentence, Channel 2 reported. Andrade was charged with concealing a body and took a plea deal as well.
Ben-Hanania’s attorney said he still denies injecting Bennett with heroin, according to Petchenik who said Ben-Hanania told Bennett’s family,”I’m sorry,” before he was sentenced.