What event did not occur following the Lincoln County War?

Billy the Kid becoming a sheep herder did not occur following the Lincoln County War. After the chaos of the Lincoln County War, which lasted from 1878 to 1881 and involved a conflict between rival factions in New Mexico, Billy the Kid continued his life of crime and notoriety rather than settling down into a peaceful occupation such as sheep herding. He became infamous as a gunslinger and was involved in various criminal activities, including cattle rustling, rather than adopting a quieter lifestyle.

In contrast, the other events listed are historically connected to the time after the Lincoln County War. Raids by the White Caps, a vigilante group, occurred as part of ongoing conflicts and power struggles in New Mexico. The murder of Colonel Albert Jennings Fountain was a significant crime linked to the lawlessness of the era following the Lincoln County War. Additionally, Pancho Villa's invasion of Columbus, which took place in 1916, was a notable military event that, while separate chronologically, reflects on the tumultuous history of violence in the region during and after the 19th century upheavals.