Some of the people who attended the Las Vegas concert that Stephen Paddock attacked are suing the bump stock manufacturer. A woman who received wounds during the massacre has decided to sue the Mandalay Bay.

Authorities said they found “an arsenal of weapons, including bump fire stocks” in Paddocks suite at the Mandalay Bay. He killed 58 people and injured 500 more.

From Fox 59:

There are three plaintiffs named in the lawsuit against Fire Solutions, a company that makes and sells bump fire stocks. The lawsuit was filed on behalf of themselves and others who attended the concert.

The plaintiffs are suing the company for product liability, negligence, emotional distress, and public nuisance.

Fire Solutions is not currently taking new orders “in order to provide the best services with those already placed,” according to KLAS.

The massacre also led Democrats in Congress to call for a ban on bump stocks. A few GOP lawmakers have joined them.

Former President Barack Obama’s ATF legalized the bump stocks in 2010:

The stock has no automatically functioning mechanical parts or springs and performs no automatic mechanical function when installed. In order to use the device, the shooter must apply constant forward pressure with the non-shooting hands and constant rearward pressure with the shooting hand. Accordingly, we find that the ‘bump stock’ is a firearm part and is not regulated as a firearm under the Gun Control Act or the National Firearms Act.

Rick Vasquez signed off on the decision. He told The Washington Post that the ATF “followed the law, and everything was evaluated fairly and honestly with the regulations.”

Paige Gasper was wounded during the concert. Fortune reported on her lawsuit:

A California woman wounded in the mass shooting at a Las Vegas music festival has filed a lawsuit against the operators of the hotel where the gunman fired from, the festival organizers and the maker of a device that allowed weapons to be fired at a near-automatic rate.

Paige Gasper, 21, said in the lawsuit that the defendants’ negligence led to the life-threatening injuries she suffered when a bullet shattered her ribs and lacerated her liver. The lawsuit was filed on Tuesday in Clark County, Nevada.

Gasper’s lawsuit says MGM Resorts International (MGM, -2.43%) and its subsidiary Mandalay Corp., which own the hotel, failed to properly monitor Paddock’s activities and responded too late to the shooting of a hotel security officer. Paddock fired at the security officer six minutes before opening fire on the crowd below.

Gasper said the festival organizer, Live Nation Entertainment (LYV, -0.89%) , was negligent for failing to provide adequate exits and properly train staff for an emergency.