The Connecticut Supreme Court is scheduled to rule on whether gun maker Remington can be sued for making the Bushmaster rifle used to kill 20 children and six educators at Sandy Hook Elementary School in 2012.
Justices are split on the question as the court is scheduled to release majority and dissenting opinions Thursday.
The plaintiffs include a survivor and relatives of nine people killed in the massacre. They argue the AR-15-style rifle used by shooter Adam Lanza was designed as a military killing machine and is too dangerous for the public, but Remington glorified the weapon in marketing it to young people.
A lower court judge dismissed the lawsuit in 2016, agreeing with Remington that federal law shields gun makers from liability when their products are used in crimes.