Lon Tomohisa Horiuchi (born June 9, 1954) is an American former Federal Bureau of Investigation (FBI) Hostage Rescue Team (HRT) sniper and former United States Army officer who was involved in the 1992 Ruby Ridge standoff and 1993 Waco siege.

The U.S. Attorney filed a notice of removal of the case to federal court, which automatically took effect under the statute for removal jurisdiction[11] where the case was dismissed by U.S. District Judge Edward Lodge on May 14, 1998, who cited the supremacy clause of the Constitution which grants immunity to federal officers acting in the scope of their employment.

[6] Ultimately, the then-sitting Boundary County prosecutor, Brett Benson, who had defeated Woodbury in the 2000 election, decided to drop the charges, because he felt it was unlikely the state could prove the case and too much time had passed.

However, officials maintained that they were left behind from the earlier use of the house by the Bureau of Alcohol, Tobacco, Firearms and Explosives snipers on February 28, 1993.

The recovered casings at the house were tested and identified by the Texas Rangers and the Office of Special Counsel, matching them to weapons used by the Bureau of Alcohol, Tobacco and Firearms on February 28, 1993 and not those used by the FBI.

[14] For the five months following the Waco inferno, Timothy McVeigh worked at gun shows and handed out free cards printed with Horiuchi's name and address, "in the hope that somebody in the Patriot movement would assassinate the sharpshooter".