Shirtless Florida gunman does backyard target practice wearing one of the President's Make America Great Again baseball caps before murdering 17 children in school massacre

Disturbing footage has emerged of suspected Florida high school killer Nikolas Cruz doing target practice in a backyard while shirtless and wearing a Make America Great Again cap. In the video, which was taken by a neighbor and obtained by CNN, the teenager can be seen wearing the MAGA cap and socks while pumping off rounds in the yard. The teenager can be seen in the video firing the gun several times outside before securing it in the waistband of his shorts and heading back inside the home. It is unclear exactly when the video was taken but it is believed to have been just months before the deadly high school massacre.