Wyo. Stat. § 37-12-103
Whoever shall willfully and maliciously remove, break, displace, throw down, destroy or in any manner injure any rail or rails or any part of the tracks or any bridge, viaduct, culvert, trestlework, embankment, parapet or other fixture or any part thereof, attached to or connected with such tracks of any railroad in this state, in operation, or shall willfully and maliciously place any obstructions upon the rail or rails, track or tracks of any such railroad, or shall willfully and maliciously meddle, tamper, or interfere with the signals or mechanism controlling the signal devices of any such railroad, shall be punished by imprisonment in the penitentiary not less than one (1) year nor more than twenty (20) years; provided, however, if any person shall, by commission of either of the aforesaid offenses occasion the death of any person, or persons, the person or persons so offending shall be deemed guilty of murder in the first or second degree, or manslaughter, according to the nature of the offense, and, on conviction thereof, shall be punished as by law provided.
W.S. 37-12-103