A man with autism has been sentenced for the murder of a 58-year-old man during a brutal attack inside a Walgreens in East Hartford.

According to the Hartford Courant, Anthony Henry has autism and was sentenced to 20 years with the state Psychiatric Security Review Board after being found not guilty by reason of mental defect.

Police said Henry, 24, and Robert Boulay, 58, both of East Hartford, were both shopping at the Walgreens at 20 Connecticut Boulevard in East Hartford on Aug. 3 when they got into an argument inside the store.

Then the fight turned physical and Henry punched Boulay in the face, then either kicked his head or stomped on it as many as 15 to 20 times, police said.

When police arrested Henry shortly after the assault, he was initially charged with assault in the first degree and breach of peace, police said.

On Aug. 8, Boulay died at the hospital from the head injuries he sustained during the assault and police added a first-degree murder charge to the list of charges against Henry.

Henry was found not guilty by reason of insanity, according to the Hartford Superior Court clerk's office.