A chilly bin filled with male genitalia, piles of unlabelled body parts and even a torso "with the head removed and replaced with a similar head sewn together in a Frankenstein manner" were found when a US body-donation company was raided by the FBI in 2014, newly released documents show.
The eyewitness testimony of the raid on Arizona's Biological Resource Centre has been made public ahead of an upcoming civil case against the business and its aptly named owner Stephen Gore.
Former Phoenix FBI special agent Mark Cwynar said he "personally observed various unsettling scenes" while inside the Biological Resource Centre.
In addition to the grisly chilly bin, Cwynar also saw a bucket filled with heads, arms and legs.
Large male torsos with the limbs and genitals removed were also seen, as well as body parts piled on top of each other throughout the facility, with no apparent identification.