Death penalty questionable as a deterrent to mass killing

WASHINGTON (AP) — President Donald Trump is calling for new death penalty legislation as an answer to hate crimes and mass killings. But whether that would deter shooters is questionable — especially since most don’t live to face trial.
More than half the perpetrators of mass shootings since 2006 have ended up dead at the scene of their crimes — either killed by others or dying by suicide, according to a database compiled by The Associated Press, USA Today and Northeaster