Latest on the Orlando nightclub shooting investigation
A picture of the gunman Omar Mateen has begun to emerge -- here is the latest on the investigation
Omar Mateen
Orlando killer's inflammatory comments come to light
The FBI continues to dig into Omar Mateen's background -- and what they are uncovering is the 29-year-old's erratic behavior
Former coworker of Orlando shooter on his steroid use, dad issues
Omar Mateen's supervisor at GNC claims the former employee took steroids, and "could do nothing right in his father's eyes"
Sources reveal new details about Orlando terrorist's wife
Orlando terrorist's wife Noor Salman at center of investigation into deadliest attack on U.S. soil since 9/11
Anti-gay violence? ISIS leads the world
In seven predominantly Muslim countries, gay people can still be sentenced to death for their sexuality
Gunman posted to Facebook right before Orlando shooting
A source familiar with the investigation tells CBS News Omar Mateen referenced ISIS in Facebook message moments before shooting
Can Orlando victims' families and survivors sue gunmaker Sig Sauer?
Or maybe even Omar Mateen's employer, G4S? A lawsuit now underway from the Newtown school massacre could hold the answer
Local Orlando news station says Mateen called during shooting
"It's me. I am the shooter," Mateen reportedly said to a startled late night producer for local News 13, about 45 minutes after entering Pulse
Documentary shows Orlando gunman six years before nightclub massacre
Omar Mateen was working as a security guard following the BP oil spill and appears skeptical of the cleanup operation
"America's rifle": The marketing of assault-style weapons
Sales of the weapons have boomed since a ban on them expired in 2004 -- but so has their use in mass shootings
Orlando killer's wife says she tried to stop attack
Omar Mateen's wife has been interviewed by FBI and told authorities she attempted to stop husband from committing massacre, source says
Orlando gunman's father reacts to speculation son was gay
The speculation comes as several people have told investigators they saw Omar Mateen at Pulse nightclub prior to the deadly shooting
Few restrictions on assault rifle purchases in Fla.
The massacre of 49 people at an Orlando nightclub is raising questions about access to guns - assault rifles, in particular
Orlando victim describes execution scene in nightclub
Angel Colon said he was shot several times by Omar Mateen in Pulse nightclub in two separate incidents
Orlando gunman's alleged sexual confusion betrays ISIS loyalty
Former FBI profiler explains to CBS News why a man who may have been gay gunned down dozens of gay people and claimed loyalty to extremists
Did FBI miss signs in past investigations of Orlando killer?
FBI agents scrutinized Omar Mateen twice in recent years but cleared him both times, confirming no evidence of ties to terror
Orlando surgeons speak out: "This is not something that goes away"
Six surgeons at Orlando Regional Medical Center saw 44 gunshot patients at once after the shooting at Pulse nightclub
Inside the final shootout between police and Orlando shooter
Orlando police are trained to attack active shooters immediately, rather than wait for a SWAT team, so three officers quickly forced Omar Mateen to retreat
What we know about Orlando nightclub shooter Omar Mateen
Ex-wife says Omar Mateen, who fired into crowd at Orlando gay nightclub, was bipolar and abusive
Gun shop owner: Club shooter passed background check
"I'm sorry he picked my place -- I wish he picked no place," St. Lucie Shooting Center owner Ed Henson told reporters
Orlando shooter called Boston bombers his "homeboys"
Omar Mateen used his time on the phone with police in the middle of the nightclub massacre to let his ideology be known
Delay in Orlando police response to massacre examined
An off-duty cop exchanged gunfire with the Orlando nightclub shooter when he first got there, but SWAT didn't go in to take him down for three hours
Orlando shooter was "cool and calm" at the end
Negotiators were talking with Omar Mateen in the bathroom of Pulse nightclub, and what he said made the SWAT team move in
What has the Orlando gunman's father said?
Omar Mateen's father says he doesn't know what drove his "terrorist" son, but he has his own view on gays, and a history linked to radicalism
Orlando gunman's dad walks back condemnation of gays
Seddique Mir Mateen expressed sorrow for his son's actions in Orlando to CBS News, saying he wanted his boy "to be a servant" of the U.S.
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