[sbe-eas] Mobile active shooter alert (Kalamazoo MI and now Memphis TN)

[Sean Donelan]

In Kalamazoo County, Michigan on February 20, 2016, a man drove around 
town randomly shooting people (6 deaths, 2 injured).  After it was 
reported no public alert was sent, Michigan passed legislation authorizing 
the "Public Threat Alert System."

https://www.mlive.com/news/2016/06/gov_snyder_signs_public_threat.html

Generally, law enforcement professionals don't send alerts during active 
shootings incidents because they usually are a confined location. WEA is 
bad at targetting very small areas. People in the immediate area are 
already aware there is a active shooter. The cell phone alert sound could 
put people hiding in danger.

A mobile active shooter is a different situation. Mobile active shooters 
are less common (but hashappen multiple times in the U.S.; and at least 
once in Canada).  With a mobile active shooter, the public is unware of 
the danger.