Abington police detective Cindy Pettinato called Sullivan’s death sentence “appropriate.” Pettinato started the case against Packer and Sullivan in July 2016, after Sara Packer reported Grace missing to her department, claiming the teen stole $300 and ran away from home. Prosecutors say it was Pettinato’s tenacity in hounding Sara Packer for information and then showing up, unannounced, at Sullivan and Packer’s home, where they were storing Grace’s body, that eventually led to the pair’s arrest.