As the United States grappled with yet another mass shooting event on Sunday, President Donald Trump said that background checks on gun purchasers would not have prevented recent gun violence in the country. U.S. President Donald Trump speaks to the media about Hurricane Dorian as he returns from Camp David to the White House in Washington, U.S., September 1, 2019. REUTERS/Joshua Roberts A gunman near Odessa, Texas, killed seven and wounded 21 more after fleeing a traffic stop on Saturday.