Fact check: Was Luigi Mangione a lone actor?

This market will resolve to "Yes" if it is confirmed that the shooter of UnitedHealthcare CEO Brian Thompson was a lone actor - namely he did not work with others in planning and/or perpetrating this act. This market will resolve to "No" if it is confirmed the shooter worked with others. This market will resolve once there have been statements from the relevant law enforcement agencies confirming whether the shooter acted alone or not. If there has been no definitive statement by December 31, 2024, 11:59 PM ET, this market will resolve based on what law enforcement believe was most likely.