Proper is charged with, among other offenses, attempted murder of an officer or employee of the United States.
Federal criminal complaints indicate authorities arrested at least four others in connection with the plot and as a result of the investigation into Proper: Abraham Hermosillo Alvarez in Nebraska, Bryan Omar Roa and Michael Alan Thomas in California, and Daniel Eskridge in Missouri.
Proper is charged with, among other offenses, attempted murder of an officer or employee of the United States.
Federal criminal complaints indicate authorities arrested at least four others in connection with the plot and as a result of the investigation into Proper: Abraham Hermosillo Alvarez in Nebraska, Bryan Omar Roa and Michael Alan Thomas in California, and Daniel Eskridge in Missouri.