Around 9:30 a.m., agents Grogan and Dove spotted the suspect vehicle, and began to follow. Two other stakeout team cars joined them, and eventually an attempt was made to conduct a traffic stop of the suspects, who were forced off the road following collisions with the cars of FBI agents Grogan/Dove, agents Hanlon/Mireles, and agent Manauzzi. These collisions sent the suspect car nose first into a tree in a small parking area in front of a house at 12201 Southwest 82nd Avenue, pinned between a parked car (on its passenger side) and Manauzzi's car on the driver side.
Of the eight agents at the scene, two had Remington 870 shotguns in their vehicles (McNeill and Mireles), three were armed with semi-automatic Smith & Wesson Model 459 9mm pistols (Dove, Grogan, and Risner), and the rest were armed with Smith & Wesson revolvers. Two of the agents had backup revolvers (Hanlon and Risner) and both would use them at some point during the fight.
The initial collision that forced the suspects off the road caused some unforeseen problems for the agents, as the FBI vehicles sustained damage from the heavier, older car driven by Matix.[8] Just prior to ramming the Monte Carlo, Manauzzi had pulled out his service revolver and placed it on the seat in anticipation of a shootout,[8] but the force of the collision flung open his door and sent his weapon flying. Hanlon lost his .357 Magnum service revolver during the initial collision, though he was still able to fight with his Smith & Wesson Model 36 backup gun. The collision knocked off Grogan's glasses, and there is speculation his vision was so bad that he was unable to see clearly enough to be effective (a claim disputed by the FBI's Medical Director, who stated that Grogan's vision was "not that bad"). Grogan is credited with landing the first hit of the gunfight, wounding Matix in the forearm as he leaned out of the Monte Carlo to fire the shotgun at Grogan and Dove.[9]
Manauzzi was wounded when Platt fired several rounds from his Ruger Mini-14 rifle, penetrating the door of Manauzzi's car. McNeill fired over the hood of Manauzzi's car but was wounded by return fire from Platt. Platt then fired his rifle at Mireles who was running across the street to join the fight. Mireles was hit in the left forearm, creating a severe wound.[8] Platt then pulled back from the window, giving Matix opportunity to fire. Due to collision damage, Matix could only open his door partially, and fired one shotgun round at Grogan and Dove, striking their vehicle. Matix was then shot in the right forearm, probably by Grogan.[10] McNeill returned fire with six shots from his revolver, hitting Matix with two rounds in the head and neck. Matix apparently was knocked unconscious by the hits and fired no more rounds.[11] McNeill was then shot in the hand and, due to his wound and blood in his revolver's chambers, could not reload.[8]
As Platt climbed out of the passenger side car window, one of Dove's 9 mm rounds hit his right upper arm and went on to penetrate his chest, stopping an inch away from his heart. The autopsy found Platt’s right lung had collapsed and his chest cavity contained 1.3 liters of blood, suggesting damage to the main blood vessels of the right lung. Of his many gunshot wounds, this first was the primary injury responsible for Platt’s eventual death.[12] The car had come to a stop against a parked vehicle, and Platt had to climb across the hood of this vehicle, an Oldsmobile Cutlass. As he did so, he was shot a second and third time, in the right thigh and left foot. The shots were believed to have been fired by Dove.[13]
Platt took up position by the passenger side front fender of the Cutlass. He fired a .357 Magnum revolver at agents Ronald Risner and Gilbert Orrantia, and was shot a fourth time when turning to fire at Hanlon, Dove and Grogan. The bullet, fired by Orrantia's revolver, penetrated Platt's right forearm, fractured the radius bone and exited the forearm. This wound caused Platt to drop his revolver.[14] It is estimated that Platt was shot a fifth time shortly afterwards, this time by Risner. The bullet penetrated Platt's right upper arm, exited below the armpit, and entered his torso, stopping below his shoulder blade. The wound was not serious.[15]
Platt fired one round from his Mini-14 at Risner and Orrantia's position, wounding Orrantia with shrapnel created by the bullet's passage, and two rounds at McNeill. One round hit McNeill in the neck, causing him to collapse and leaving him paralyzed for several hours. Platt then apparently positioned the Mini-14 against his shoulder using his uninjured left hand.[16]
Dove's 9 mm semi auto pistol was rendered inoperative after being hit by one of Platt's bullets. Hanlon fired at Platt and was shot in the hand while reloading. Grogan and Dove were kneeling alongside the driver’s side of their car. Both were preoccupied with getting Dove's gun working and did not detect that Platt was aggressively advancing upon them. Platt rounded the rear of their car and killed Grogan with a shot to the chest, shot Hanlon in the groin area, and then killed Dove with two shots to the head. Platt then entered the Grogan/Dove car in an apparent attempt to flee the scene.[17] As Platt entered Grogan and Dove's car, Mireles, able to use only one arm, fired the first of five rounds from his pump-action shotgun, wounding Platt in both feet.[8] At an unknown time, Matix had regained consciousness and he joined Platt in the car, entering via the passenger door. Mireles fired four more rounds at Platt and Matix, but hit neither.[18]
Around this time, Metro-Dade police officers Rick Frye, Leonard Figueroa and Martin Heckman arrived. Heckman covered McNeill's paralyzed body with his own.[19] Frye assisted Hanlon.[20]
Platt's actions at this moment in the fight have been debated. A civilian witness described Platt leaving the car, walking almost 20 feet and firing at Mireles three times at close range. Mireles does not remember this happening. Officer Heckman does not remember Platt leaving the Grogan/Dove car. Risner and Orrantia, observing from the other side of the street, stated that they did not see Platt leave the car and fire at Mireles.[21] However, it is known for certain that Platt pulled Matix's Dan Wesson revolver at some point and fired three rounds.[16][22]
Platt attempted to start the Grogan/Dove car. Mireles drew his .357 Magnum revolver, moved parallel to the street and then directly toward Platt and Matix. Mireles fired six rounds at the suspects. The first round missed, hitting the back of the front seat. The second hit the driver's side window post and fragmented, with one small piece hitting Platt in the scalp. The third hit Matix in the face, and fragmented in two, with neither piece causing a serious wound. The fourth hit Matix in the face next to his right eye socket, travelled downward through the facial bones, into the neck, where it entered the spinal column and severed the spinal cord. The fifth hit Matix in the face, penetrated the jaw bone and neck and came to rest by the spinal column.[23] Mireles reached the driver's side door, extended his revolver through the window, and fired his sixth shot at Platt. The bullet penetrated Platt's chest and bruised the spinal cord, ending the gunfight.[24]
The shootout involved ten people: two suspects and eight FBI agents. Of the ten, only one, Special Agent Manauzzi, did not fire any shots (his firearm was thrown from car in the initial collision), while only one, Special Agent Risner, was able to emerge from the battle without a wound. The incident lasted under five minutes yet approximately 145 shots were exchanged.[8][25]
Toxicology tests showed that the abilities of Platt and Matix to fight through multiple traumatic gunshot wounds and continue to battle and attempt to escape were not achieved through any chemical means. Both of their bodies were drug-free at the time of their deaths.[26]