Missoula, MT (KGVO-AM News) - Investigators are now saying the man killed during a confrontation with Yellowstone Park rangers was stopped before many more lives were lost.

According to new information on the July 4th shooting at Canyon Village, the man had designs on carrying out a "mass shooting" in the park.

28-year-old Lucas Bariah Fussner of Milton, Florida was killed after shooting a ranger.

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Initial details from the FBI investigation

According to the information released Tuesday, the case started when park dispatchers received a call shortly after midnight that a woman was being held against her will by a man with a gun at a residence in Canyon Village. She had said Fussner was threatening to kill her and had plans to kill others during 4th of July celebrations outside the park.

Rangers found his empty car when they got to the scene, and knowing Fussner was armed and dangerous, began a search that eventually involved up to 20 rangers who also took steps to protect visitors.

Suspect was located in the morning

Investigators say rangers found Fussner at Canyon Lodge, as he was walking toward the service entrance to the building while firing a semi-automatic rifle. There were as many as 200 people inside.

During an exchange of gunfire, rangers fatally shot Fussner, and one ranger was shot in a "lower extremity". Fortunately, no one else was hurt.

The suspect worked for Yellowstone concessionaire

Authorities are now confirming that Fussner was an employee of Xanterra Parks and Resorts, which operates the lodges and restaurants in the park. The FBI, along with NPS, Xanterra, and other partners are providing help to victims and witnesses as the investigation continues.

Yellowstone Superintendent Cam Sholly believes "many lives were saved." And he praised rangers for "taking decisive action" to keep people safe.

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