“Then can I just shoot him?”

“Yeah. I’ll leave the timing to you.”

The younger brother put his finger on the trigger, then stopped.

...

He was dead. Without any warning, his brother had suddenly died.

At the time, no one had known much about the boy’s power. They had thought it was merely some supernatural curse to cause death and had optimistically assumed that if they weren’t noticed, they would have no problem. They only learned about his ability to detect killing intent, and the fact that distance meant nothing to him, after this event.

-Volume 6 page 209