Miller was said to have appeared intoxicated when he rang a 911 dispatcher to report that a female passenger with whom he'd allegedly been feuding had "a bomb in her bag.”
Authorities allege Michael Kadar advertised an email service on the black market that would send bomb threats to schools.
Juan Thompson pleaded guilty after making several bomb threats against Jewish organizations in an effort to disgrace his former romantic partner.
Police said Nichole Cevario's journal detailed "a shooting event" she planned to execute in April at her Maryland high school.
"This is not the first time that ADL has been targeted, and it will not deter us in our efforts to combat anti-Semitism and hate against people of all races and religion," ADL CEO Jonathan Greenblatt said.
Each threat turned out to be a hoax, a JCC association official said, and Monday's threats bring the 2017 total around the US and Canada to 69.
"The students at every school in the L.A. Unified district will be massacred, mercilessly. And there is nothing you can do to stop it," said the threatening email.
Laughing to keep from crying.
Condor Flight DE490 was en route from Berlin to the Egyptian coastal town of Hurghada when it was forced to land in Budapest Monday.
The passenger planes, one from Los Angeles and the other from Washington, D.C., were bound for Paris Tuesday when threats were made. No explosives were found.
Danielle Shea of Quincy, Mass., was arrested Sunday.
The terminal at the Birmingham-Shuttlesworth International airport was evacuated Sunday because of a threat.
The bomb squad was dispatched to investigate, just in case.
The St. Rose of Lima Catholic Church in Newtown is roughly one mile from Sandy Hook Elementary.