President Trump embraced the teary-eyed mother of 12-year-old Jacob Freytes — the Bronx boy allegedly shot dead by a career criminal last month — as he promised to get tougher on crime during a pro-police event on Long Island Friday. The president paused his speech at the Nassau County Police Academy in Garden City to acknowledge Migdalia Martinez, whose son was fatally hit by a stray bullet outside a Bronx bodega in July.