On October 20, 1981, a Brink’s armored truck was robbed at the Nanuet Mall in Nanuet, New York. During the heist, Brink’s guard Peter Paige was shot and killed and another guard wounded. The suspects fled in a U-Haul truck and were later stopped at a roadblock on Route 59.

Nyack Police Sergeant Edward O’Grady, 33, and his partner Officer Waverly Brown approached the vehicle at the roadblock and were met with automatic gunfire from occupants in the back of the truck. Both officers were fatally shot; Sergeant O’Grady was taken to Nyack Hospital and died about ninety minutes later. The attack triggered a large investigation that resulted in multiple arrests and lengthy prosecutions.

Several people connected to the robbery and murders were later convicted and given long sentences. What details about the planning or the specific roles of those involved remain unclear to readers with information about the case?