Autopsy: Nick Gordon died from heroin overdose

Bobbi Kristina Brown (L) and Nick Gordon attends the GRAMMY Gift Lounge during the 56th Grammy Awards at Staples Center on January 25, 2014 in Los Angeles, California. (Photo by Imeh Akpanudosen/WireImage)

An autopsy has found that Bobbi Kristina Brown's ex-partner died from an accidental drug overdose.

The medical examiner in Seminole County, Florida, says Nick Gordon overdosed on heroin on New Year's Day. Police say Gordon was found unresponsive at an Orlando-area hotel.

He was taken to a nearby hospital, where he was pronounced dead. Gordon's death came nearly five years after Brown was found face-down and unresponsive in a bathtub at her Georgia home.

The 22-year-old died after six months in a coma. Brown was the daughter of singers Whitney Houston and Bobby Brown. Houston drowned in a bathtub in 2012.