POPLAR, Mont. - Law enforcement is investigating after a picture, which appeared to show two girls throwing a dog off a train bridge in Poplar, started circulating on Facebook. The Roosevelt County Sheriff's Office received a call from the Fort Peck Tribal Police Dispatch and RCSO undersheriff John Summers told Montana Right Now they found the dog dead. Itâs still not clear if the dog died before or after it was reportedly thrown from the bridge. Summers said that will most likely determine how they move forward with the case and what, if any, charges will be filed. "Ultimately this will depend on what he gathers in his interviews. If the dog was deceased or not, how did the dog die? Was the dog dead, was he hit by a train then got thrown over? Did it get hit by a car? How did it die? Was it thrown over alive? Those details are going to be important," Summers said.