Aaron Hernandez's older brother, Dennis "D.J." Hernandez, was arrested last week after he allegedly threw a brick at ESPN's headquarters with a note attached to it ... TMZ Sports has learned.
According to police documents, the incident happened at around 3 PM on March 23 at the famed Bristol, Conn. campus -- just after cops were asked to perform a welfare check on D.J. after he had allegedly stated he wanted to smash out windows at the State Capital and at ESPN.
Police say ESPN security told them an Uber had arrived at one of their gates -- but when it was turned away, a passenger in the car got out of the ride, threw something onto the grounds, and then got back into the vehicle and left.