HARTFORD, Conn. (AP) — The maker of the rifle used in the Sandy Hook Elementary School shooting has asked the U.S. Supreme Court to hear its appeal of a Connecticut court ruling that reinstated a wrongful death lawsuit against the company.

Remington Arms filed its request Thursday. It cited a 2005 federal law that shields gunmakers in most cases from liability when their products are used in crimes.

The gunman used a Bushmaster semi-automatic rifle to kill 20 first-graders and six educators at the school in 2012. A survivor and relatives of nine victims sued the Madison, North Carolina, gun maker.

The Connecticut Supreme Court ruled in March that Remington could be sued under state law over how it marketed the rifle to the public.