He lived in Fort Pierce, Fla.• The Orlando Police Department said Mr. Mateen was born in New York. • More people were killed in Orlando than in any previous mass shooting in the United States. • The global security company G4S, based in Britain, said Mr. Mateen had worked for it as a guard since 2007. investigated Mr. Mateen for possible terrorist ties in 2013 and 2014 but did not believe him to be a threat. The Orlando shooting was the worst terrorist attack on American soil since Sept. 11, 2001.

Source: New York Times June 12, 2016 19:49 UTC