On Thursday, in an act of “domestic terrorism,” a man identified as Mohammod Youssuf Abdulazeez opened fire on two separate military centers in Chattanooga, Tenn.

Authorities said the 24-year-old shot through the glass doors of a recruiting center, before driving to a naval reserve center where he killed four Marines. A wounded sailor died early Saturday.

Abdulazeez was shot and killed at the scene.

This is the aftermath of a tragedy that rocked a Tennessean town and brought in support nationwide.

Police tape and a makeshift memorial frame the scene at an Armed Forces Career Center, where earlier in the day an active shooter opened fire, injuring one U.S. Marine. The gunman later moved to the nearby Navy Operational Support Center firing multiple shots, killing four Marines and injuring one Sailor. (U.S. Navy/Polaris)

This was the the first targeted location, where Abdulazeez  allegedly shot multiple rounds through the window before driving off to his second location. (Photo: U.S. Navy/Polaris/Newscom)

The four marines killed in Thursday’s shootings include Gunnery Sgt. Thomas Sullivan, Staff Sgt. David Wyatt, Lance Cpl. Skip Wells and Sgt. Carson Holmquist. The sailor who died Saturday of his wounds was Petty Officer 2nd Class Randall Smith.

According to The Boston Globe, Sullivan, 40, went on two tours of duty in Iraq and had earned a Purple Heart for his service. He was a native of Springfield, Mass.

For those who have not heard yet, one of the four Marines murdered today was one of our own – Thomas Sullivan. Please keep his family in your thoughts and prayers. Semper Fidelis Zimminite!

Posted by India Battery 3rd Battalion 12th Marines – I 3/12 on Thursday, July 16, 2015

Wells, 21, went to Georgia Southern University before deciding to join the Marine Corps.

Holmquist, 26, from Grantsburg, Wis., served in Afghanistan. He lived in North Carolina with his wife and child.

Wyatt, 37, served in Iraq, Afghanistan and South Korea, where he specialized in field artillery. He lived in the Chattanooga area with his wife and children.

Smith, 26, from Paulding, Ohio, was a Navy reservist serving on active duty in Chattanooga. He was married and the father of three daughters.

Local and national law enforcement agencies worked together to gather data in the effort of understanding the details and motives behind the single shooter’s attack.

epa04849745 Members of a Federal Bureau of Investigations (FBI) Evidence Response Team work outside a US Military Recruiting storefront after a shooting in Chattanooga, Tennessee, USA, 16 July 2015. Authorities say the shootings at two different locations left four US Marines and the gunman Mohammod Youssuf Abdulazeez dead. EPA/ERIK S. LESSER (Newscom TagID: epalive751951.jpg) [Photo via Newscom]

Members of a Federal Bureau of Investigations Evidence Response Team work outside a U.S. Military Recruiting storefront after the shooting. (Photo:Erik S. Lesser/EPA/Newscom)

epaselect epa04849685 A Chattanooga Police officer walks past the bullet-riddled front door of a US Military Recruiting storefront after a shooting in Chattanooga, Tennessee, USA, 16 July 2015. Authorities say the shootings at two different locations left four US Marines and the gunman Mohammod Youssuf Abdulazeez dead. EPA/ERIK S. LESSER (Newscom TagID: epalive751906.jpg) [Photo via Newscom]

Both military centers were gun-free zones, sparking debate over the policy’s consequence in the shootings. (Photo: Erik S. Lesser/EPA/Newscom)

Law enforcement personnel gather outside the home of gunman Mohammod Youssuf Abdulazeez to search for a potential motive. (Photo: Erik S. Lesser/EPA/Newscom)

Law enforcement personnel gather outside the home of alleged gunman Mohammod Youssuf Abdulazeez to search for a potential motive. (Photo: Erik S. Lesser/EPA/Newscom)

Local community members gathered at the scene to show their support and to honor those that lost their lives.

Matt Branum, a member of the U.S. Coast Guard Auxiliary, holds a U.S. flag outside the recruitment center to show his support after the shooting. (Photo: Erik S. Lesser/EPA/Newscom)

epa04849749 A memorial near a US Military Recruiting center after a shooting in Chattanooga, Tennessee, USA, 16 July 2015. Authorities say the shootings at two different locations left four US Marines and the gunman Mohammod Youssuf Abdulazeez dead. EPA/ERIK S. LESSER (Newscom TagID: epalive751946.jpg) [Photo via Newscom]

An impromptu memorial was created by locals after news of the shooting spread. (Photo: Erik S. Lesser/EPA/Newscom)

epa04849689 A family brings flowers to a makeshift memorial near a US Military Recruiting storefront after a shooting in Chattanooga, Tennessee, USA, 16 July 2015. Authorities say the shootings at two different locations left four US Marines and the gunman Mohammod Youssuf Abdulazeez dead. EPA/ERIK S. LESSER (Newscom TagID: epalive751891.jpg) [Photo via Newscom]

A family brings flowers to a makeshift memorial. (Photo: Erik S. Lesser/EPA/Newscom)

 

This report was updated to include Smith’s death.