WYOMING – Yellowstone National Park officials have upped the ante. They are now offering up to $25,000 in reward money for information leading to the arrest and conviction of whoever is responsible for shooting a wolf on the north side of the park, near Gardiner, Montana. National Park Service law enforcement believes the incident happened sometime between April 10 at 1 am and April 11 at 2 pm.“Due to a tremendous desire by groups and individuals to donate for this reward, the park has established a Yellowstone Resource Rewards Fund through our charitable partner, Yellowstone Forever,” superintendent Dan Wenk said. “Up to $25,000 from this fund will pay for the reward in this case if there is a conviction. Any money leftover will be held for future resource violation cases in the park.”Park officials are asking anyone with any information about the incident that could help with this investigation to contact the National Park Service investigative services branch (ISB). Any tip may be helpful. Information will be kept confidential and informants can remain anonymous.