A man from Arizona who donated his mother’s body to the Biological Resource Center in Phoenix for medical research said discovered her body was used instead for “blast testing” after being sold to the military.

Jim Stauffer told KNXV in an interview on Tuesday that he had donated his mother’s body to the center after her death in 2013. At the time, he had hoped her brain would be used for medical research into Alzheimer’s, which she suffered from up until her death, as well as possible treatments for the disease. 

{mosads}However, Stauffer said he discovered her body was used for “blast testing” instead after being sold to the U.S. Army, a Reuters investigation found. Stauffer said he learned of how his mother’s body was used for the testing after a Reuters reporter reached out to him with documents regarding his donation.

“She was then supposedly strapped in a chair on some sort of apparatus, and a detonation took place underneath her to basically kind of get an idea of what the human body goes through when a vehicle is hit by an IED,” he told the station.

“Every time I dream about my mom, I told you she was a quiet person, this person in my dream was angry,” he continued.

According to People, Stauffer is one of the more than 30 plaintiffs who have brought a civil lawsuit against the center’s owner, Stephen Gore, as more reports surface of illegal activity at the body donation facility.

During an FBI raid in 2014, officials reportedly discovered buckets of body parts, male genitalia in a cooler, and pieces of different people’s bodies sewn together at the facility. 

After pleading guilty to illegal control of an enterprise in October, Gore was sentenced to a year of deferred prison time and four years of probation.