I would remind you that he is charged, not convicted.  And now Sheldon High School is "charged" as well. But all of the perpetrators who worked for non-public employers rarely make the news, and if they do their employers are not mentioned.  I hold everyone to the same standard of conduct.  A ditch digger assaulting his wife is no different than a teacher doing so.

"The frequency with which local educators make the news with their troublesome behavior saddens me."  You are making my point.  People who are not local educators are much less likely to make the news, even if the circumstances are similar.  

If he is convicted of the offense it becomes relevant to the employer. But until then, without a clear and present danger to others his employer is not relevant.