Anti-Semitic Threats Stopped by Armed Samaritan in Florida

How in the Hell can a self-aware, thinking, mature individual believe that is OK to harass and threaten or harm someone else based on Religious Beliefs. That is just animalistic behavior. Thank the 2nd, there was someone there that could stop it before it got worse.
TSgt David L., SPC Randy Zimmerman,
SGT James Murphy, CPT Jack Durish,
PO3 Bob McCord, COL Mikel J. Burroughs,
SPC Gary Welch, SGT Mark Anderson,
CPL Douglas Chrysler, Maj Marty Hogan,
1SG Steven Imerman, SMSgt David A Asbury,
MSgt Robert "Rock" Aldi, MSgt David Hoffman,
SSG Michael Noll, MAJ Dale E. Wilson, Ph.D.
SGM Erik Marquez, CW3 Harvey K.