Who Is Cosmo DiNardo, The Man Who Confessed To Killing 4 Young Men In Pennsylvania?

A dirt bike accident left the alleged 20-year-old pot dealer with brain damage. One neighbor said, "He used to walk around her in camouflage with a gun hunting squirrels. He’s a scary kid.”

By Gina Tron

Cosmo DiNardo, 20, confessed on Thursday to killing four young men before burning and burying their bodies on his parents’ farm. He was reportedly a drug dealer who sold the young men marijuana. Here is what we know about him:

He has a 4-month-old gun charge, which he was arrested for Monday. A warrant accused him of being a former mental patient in possession of a shotgun. Police said he may suffer from schizophrenia.

DiNardo is “a subject known to be suffering from mental illness and admittedly having been the subject of an involuntary commitment to a mental institution for inpatient care and treatment,” an investigator wrote in an affidavit about the gun charge.

He was in a dirt bike wreck about six months ago that left him with a head injury. The accident left DiNardo stranded in the woods for over a day until he received help, a friend told Heavy.com. “He had frontal lobe damage, and I think that messed up his brain,” a friend told the HuffPo.

Sometime after the accident, one friend claimed DiNardo began using K2, a synthetic marijuana drug.

Eric Beitz, another one of DiNardo’s friends, told Philly.com that DiNardo had been selling marijuana and guns. He also claimed that DiNardo bragged about having someone killed over a debt.

His parents own a 68-acre farm located in Solebury Township, about 30 miles north of Philadelphia. His parents also reportedly own a concrete company.

DiNardo is Facebook friends with one of the missing men, Jimi Patrick.

A neighbor told the Trentonian, that DiNardo was “pretty nutty.” He said, “He used to walk around her in camouflage with a gun hunting squirrels. He’s a scary kid.”

He is a 2015 graduate of Holy Ghost Preparatory School, a private Catholic school according to the Huffington Post.

He had planned to major in Biology at Arcadia University and study abroad. In an Arcadia article, he is quoted saying, “I’m going to go overseas, hopefully to Italy and the rest of Europe.” He later dropped out.

DiNardo’s Facebook showed he liked hunting, fishing and athletic shoes.

[Facebook and Instagram]

Related Stories

Crime Time is your destination for true crime stories from around the world, breaking crime news, and information about Oxygen's original true crime shows and documentaries. Sign up for our Crime Time Newsletter and subscribe to our true crime podcast Martinis & Murder for all the best true crime content. 

You May Also Like...
Recommended by Zergnet