Omar Mateen: America’s deadliest mass shooter

1987: Omar Mir Seddique Mateen born in New York – U.S. citizen of Afghan descent. His father, Seddique Mateen, is a life insurance salesman and Taliban supporter who claims to be president of Afghanistan

2007: Omar Mateen starts work as an armed security guard for G4S in Florida. He has two firearms licences. Mateen undergoes background checks in 2007 and 2013

2009: Marries Sitora Yusufiy in Fort Pierce, Florida, after meeting online. Sitora leaves within months, saying he is violent and mentally unstable. Couple divorce
in 2011

2013: Marries Noor Zahi Salman, couple have one son

2013-14: Mateen is interviewed by FBI agents twice in 2013 after comments to co-workers about radical Islam, gays and blacks. Is interviewed again in 2014 over his
connection to Moner Mohammad Abu Salha, an American from Fort Pierce who became a suicide bomber in Syria for Al-Nusra Front

Jun 2016: Mateen purchases .233-calibre AR-15 assault rifle and 9mm Glock pistol

Jun 12: Mateen drives to Orlando in rented van to carry out attack on gay nightclub that leaves 50 people dead. In midst of shooting, Mateen calls 911 and pledges his allegiance to so-called Islamic State. Mateen is killed in shootout with police

Jun 13: Islamic State radio calls Mateen “one of the soldiers of the Caliphate in America”

Sources: Palm Beach Post, Miami Herald

Pictures: Associated Press