Parents, students and leaders express concerns at Metro Nashville Public Schools' board meeting just six days after a deadly school shooting.

After a deadly shooting rocked the community and halted classes at Antioch High School for nearly a week, the return of students Tuesday started and ended the same way — with protest.

The board discussed how their decision to pilot the weapon detection system, Evolv, was not taken lightly. The board acknowledged the many concerns and limitations of using them.