DEERFIELD BEACH, Fla. – Robert Runcie, the superintendent of Broward County Public Schools, said on Wednesday three students’ deaths have had a “big, big impact" on Deerfield Beach High School. Deerfield Beach High School students are grieving again on Wednesday. Terrance Jackson, a 15-year-old Deerfield Beach High School football player, was killed in a shooting that took place during a funeral. Their school’s administrators released a statement on Tuesday: “One of our own Deerfield Beach High School students passed unexpectedly yesterday. Some Deerfield Beach students regularly used #MSDStrong to ask lawmakers to work on gun control and increase funding for mental health resources.