It is NO surprise the suspect is gone, it was reported in MSM July 30. Twitter did NOT tip the guy off. The search and probable taking of DNA tipped him off and then he was gone. LE can be mad all they want but they should have been watching him.
From article on 7/30 the Janitor talks about the guy in Apartment 52:
"He was here Monday this week, 'cause I saw him," McCorkle said.
He has not been seen since and a white van he is known to have driven has also not been seen by anyone for several days.
http://www.wcnc.com/story/news/crime/2014/07/30/newton-counselor-neighbor/13373175/