COEYMANS, N.Y. (AP) — Fifteen buffaloes that escaped from a farm were intentionally shot and killed Friday after they dashed past a group of police, crossed a major highway and ended up near some schools, authorities said. The killing of the buffaloes, which were confined in the stream bed, turned chaotic at the start, with deputies detaining a hunter who refused their order to finish off one of the three buffaloes that were initially shot. Thomas Gallagher, a Cornell Cooperative Extension large animal expert who has worked with GEM and who consulted with authorities Friday, said tranquilizers are not effective against buffaloes because of their thick hides and doses need to be so high they are generally lethal.