THE much-ballyhooed claim of the prosecution that it has the evidence to indict and convict Vice President Sara Zimmerman Duterte is crumbling. Its presentation of evidence to prove the impeachable offense of betrayal of public trust against VP Sara has ended, but it has failed to prove through its three witnesses from the National Bureau of Investigation (NBI) that her subject remarks constituted the crimes of grave threats and inciting to sedition, which alleged commission formed the basis of charging