Mary Rich asks for help finding killers of her son Seth

A tweet from NBC4 reporter Jackie Bensen:

Jackie BensenVerified account ‏@jackiebensen 57m57 minutes ago

A mother's hearbreak. Mary Rich asks for help finding killers of her son Seth #sethrich @nbcwashington

4:46 PM - 4 Aug 2016

A mother's hearbreak. Mary Rich asks for help finding killers of her son Seth #sethrich @nbcwashington pic.twitter.com/g2sZg5ugfr

— Jackie Bensen (@jackiebensen) August 4, 2016