YOUR DESCRIPTION HAS REACHED THE LIMIT OF CHARACTERS ALLOWED AND WAS CUT. Watch the entire news conference here. The FBI says a military service member opened fire on the Chattanooga gunman after he crashed through the gates of a military facility there. Ed Reinhold, the FBI's special agent in charge in Knoxville, said during a news conference Wednesday that a service member fired at the shooter after he crashed his rented, silver Mustang convertible through the gates of a joint Marine-Navy facility. Reinhold says the gunman, Muhammad Youssef Abdulazeez, went inside the building and shot a service member. He then made his way through the building and continued shooting. Abdulazeez went out the back, and then shot four more people before Chattanooga police opened fire on him and killed him. Reinhold said all of the shots fired were from the same gun. Reinhold would not specify which gun, although he had earlier reported that the shooter had two "long guns" and a sidearm. Going into more detail of the timeline, Reinhold said Abdulazeez walked into the building and shot and killed the first service member he encountered, and went looking for more inside the building. Reinhold said Abdulazeez exited the building into the motor pool area, still firing his gun. Reinhold said two service members helped others to get to safety by climbing over the fence. They killed, along with two others. Investigators found five weapons on the scene - three from the shooter, two from service members. One of the service members' weapons had been discharged. One of them had not. "We do not know if the shooter was hit by the service member's weapon. That's part of the autopsy which is still pending," Reinhold said. Ballistics reports indicate all of the victims were hit by the same weapon, that of the shooter. Reinhold said there is no indication any of the victims were hit by friendly fire. Reinhold said Chattanooga Police were in pursuit of the shooter when he broke through the gate. The officers made entry as soon as they could, going toward the gunfire. Reinhold says as soon as they encountered the shooter, they engaged him with gunfire. That is when Officer Dennis Pedigo was shot in the ankle. Reinhold says the FBI is exploring and interviewing every member of Abdulazeez's family, and anyone he associated with. Reinhold said agents are not ready to share information from those interviews. Reinhold told the media that it is too earlier to determine whether Abdulazeez had been radicalized. But Reinhold said agents are pursuing that possibility. Reinhold said right now agents are treating Abdulazeez as a "homegrown violent extremist." "We believe he acted alone that day," Reinhold said. Reinhold said the entire sequence of events at the Amnicola location took 3 to 5 minutes. Earlier in the news conference, a military official says several troops "ran back into the fight" after getting their colleagues to safety during an attack in Chattanooga that left four Marines and a sailor dead. Maj. Gen. Paul W. Brier, commanding general of the 4th Marine Division, said during a news conference Wednesday in Chattanooga that there were 20 Marines and two Navy corpsman inspecting equipment at a joint Marine-Navy facility when the attack happened on Thursday. Brier says the troops "reacted the way you would expect" during an attack, rapidly going room to room to get others to safety. They had just returned from a training exercise in California. He says once they got to safety, several ran back into the fight. Brier would not provide further details about what happened. The gunman, Muhammad Youssef Abdulazeez, died after a gunfight with police. U.S. Attorney Bill Killian said that regular%