TMZ reports 19-year-old Marrow was in his Georgia apartment handling a gun when it accidentally fired, fatally wounding roommate Daryus Johnson, also 19.
Charges against Marrow include involuntary manslaughter, possession of a firearm in the commission of a felony, and reckless conduct, along with possession of marijuana with the intent to distribute, and possession of a stolen firearm.
He is currently in custody.
Marrow appeared on his grandfather's reality show, "Ice Loves Coco."
Elyjah Marrow, grandson of rapper/actor Ice-T, was arrested on Tuesday after he accidentally killed his roommate with a handgun.