Role-playing Quest Somewhere in the Wild West

Wild West. City of Bonanza, in the Rocky Mountains of Montana. For many years, the most serious incident here was cowboy fights after drinking too much whiskey in the saloon.

But it seems that the attention of the entire state is now focused on Bonanza. Take a look at the headlines in Montana last month:
“The legendary criminal Black Bill and his gang are hiding in Bonanza? Infamous Billings-Helena Train Robbery!
“Dr. Brown of Bonanza has cured two terminally ill patients. The secret of Indian shamans or the latest European development?
"Pacific Railroad to pass through Bonanza next fall"
“The famous singer Lucia della Esterolla went incognito to Bonanza. What is a star of two continents to do in a town with a population of fifty?”
Mudflow in the Rocky Mountains. Bonanza is actually cut off from the world. Rescue work has begun»

Meanwhile, in Bonanza, residents are sitting out a hard time in those houses that were not touched by the mudflow. For example, in the Seven Moon saloon. Misfortune unites everyone, so a cowboy and an Indian, a decent young lady and a cabaret girl can be at the same table.

And just now, in the best room on the second floor of the saloon that was rented out by wealthy travelers, the body of that same Lucia della Esterolla was found, and her famous diamond necklace, which cost a fortune, disappeared without a trace.

Was Black Bill, who robbed the Billings to Helena train yesterday, really hiding in Bonanza?