In 2003, Thomas Emil Sliwinski was charged with criminal endangerment for having sex without consent with his young stepdaughter. He pled guilty to this charge and the plea agreement required Sliwinski to attend sex offender treatment. He was also charged with tampering with physical evidence after it was learned that he had destroyed evidence and Sliwinski was convicted of this charge. Sliwinski was given a five-year suspended sentence for both of these convictions.
Sliwinski was later kicked out of his sex offender treatment program. As a result, the Lewis and Clark County Attorney in Montana filed a petition to revoke Sliwinski's probationary sentences. Sliwinski also failed to register as a sex offender. A hearing regarding the petition was to be held on September 2, 2004, but Sliwinski failed to appear. A warrant for Sliwinski's arrest was issued on September 2, 2004, by the Montana First Judicial Court, Lewis and Clark County, for revocation of his suspended sentences for the underlying felony offenses of criminal endangerment and tampering with physical evidence. A second local arrest warrant for Sliwinski was issued in the same jurisdiction on September 9, 2004, for bail jumping. On September 13, 2005, a federal arrest warrant charging Sliwinski with unlawful flight to avoid prosecution was issued by the United States District Court, District of Montana, Great Falls, Montana.
At the time the state initiated its prosecution, Sliwinski reportedly practiced polygamy while residing in a remote area between Helena and Great Falls, Montana, where he was "married" to three persons.
Sliwinski may wear eyeglasses. He was last known to be in the area of LeBaron, Mexico, located in the state of Chihuahua.