Rate fell from 5.3 percent in February.
Has declared plans to run for governor in 2018.
Attorneys argued that DNA from crime scene did not match.
Republican member of board was suspended by Secretary of State in March.
Monday event to be moderated by Anderson Cooper.
Justices consider media lawsuits seeking access to reports from unsolved case.
Two other cubs have yet to go on view to the public.
Couple who owned the business were found shot to death last week.
4 more counties added to pilot program, plus $1M to fund expansion.
The attendant who took his money recognized the suspect and dialed 911.