Mohammad Malik, who knew Orlando gunman Omar Mateen, discusses the red flags he saw in 2014. NBC's Ayman Mohyeldin reports the latest details.June 21, 2016
UP NEXT
Pulse shooting survivor applauds NY AG suing to dissolve NRA
01:49
FL Gov. backtracks after omitting LGBTQ reference in proclamation on the Pulse shooting
09:43
LGBTQ activist on community's growing safety fears in Trump era
06:11
Parkland survivor: I appreciate candidates that voice opinions on gun control
09:52
Widow of Pulse nightclub shooter not guilty on all counts