Not good killers

In a distance on the roof of a random building, a man was watching the battle happening at Sekiko Academy. He was watching the battle through some sort of small telescope. When he saw the leader of the group of kidnappers talking calmly with the one he was supposed to kidnap, the man on the roof contacted someone. 

"They failed, what should we do next?" 

"Eliminate all the evidence." 

"Roger that." 

The man opened the large suitcase on his side, inside the large suitcase contained a disassembled sniper rifle, two short swords, and a switch. Among the things inside the large suitcase, the man took out the switch, he then pointed it in the direction of Sekikiko Academy and pressed the switch.