The Tyler poison gas plot was an American attempt at domestic terrorism thwarted in April 2003 with the arrest of three individuals in Tyler, Texas and the seizure of a cyanide gas bomb along with a large arsenal that included at least 100 other conventional bombs, machine guns, an assault rifle, an unregistered silencer, and 500,000 rounds of ammunition. The chemical stockpile seized included sodium cyanide, hydrochloric acid, nitric acid and acetic acid.
The three individuals were linked to white supremacist and anti-government groups. They were:
Feltus was a member of the New Jersey Militia. Krar was suspected of making his living travelling across the country selling bomb components and other weapons to violent underground anti-government groups. Federal authorities had their eye on Krar since at least 1995 when ATF agents investigated a possible plot to bomb government buildings, but Krar was not charged. Since the September 11 attacks, their attention was focused on Middle Eastern terrorist activities. They were only alerted to Krar's recent activities by accident when he mailed Feltus a package of counterfeit birth certificates from North Dakota, Vermont, and West Virginia, and United Nations Multinational Force and Observers and Defense Intelligence Agency IDs. The package was mistakenly delivered to a Staten Island man who alerted police.
On May 4, 2004, Krar was sentenced to 135 months in prison after he pleaded guilty to building and possessing chemical weapons. Bruey was sentenced to 57 months after pleading to "conspiracy to possess illegal weapons."
As per a lookup at the BOP prisoner database on September 18, 2012, Krar was listed as deceased on May 7, 2009, Bruey was released in May 2008, and no information is available for Edward Feltus.