Three of the The Buffalo Bayou Partnerships’ boats were cast adrift Tuesday night by vandals, after an arson fire that destroyed the Osprey, the nonprofit’s pontoon tour boat and damaged the Bio-Vac, a clean-up craft. BBP works to maintain and improve the Buffalo Bayou system, and one of its sources of revenue is bayou tours on the Osprey, which will be suspended until it can be replaced. There’s a $5000 reward for information on the case.