The Latest: Students leave after 1st back at school

PARKLAND, Fla. (AP) — The Latest on the return of students and teachers to classes following the killings of 17 people at Marjory Stoneman Douglas High School(all times local):
12 p.m.
Students who returned to school two weeks after 17 people were killed at their Florida school are leaving the campus after a half day.
The Marjory Stoneman Douglas High School students were greeted Wednesday morning by police officers carrying military style rifles and an array of counselors and therapy dogs