(Salt Lake City, UT) — A well-known actress is throwing her support behind a bill in the Utah Legislature that would ban the use of gas chambers at animal shelters. Katherine Heigl [[ HIGH-gul ]] joined the sponsor of the bill yesterday at the State Capitol to urge lawmakers to pass it. Heigl lives in Utah and called the lack of a law banning gas chambers a black mark against the state. The bill has lacked support when it was introduced in previous sessions, with critics noting that no current Utah animal shelters use gas chambers to euthanize animals.