The parents of two sisters, victims of the recent Oxford High School shooting, are suing school officials. The parents filed 2 lawsuits of 100 million dollars last Thursday, claiming that the shooting was “entirely preventable” and that school officials “increased the dangers then-existing at Oxford High School.”

Jeffrey and Brandi Franz filed the lawsuit in the U.S. District Court for the Eastern District of Michigan on behalf of their daughters, Riley, 17, who survived a gun shot to the neck, and Bella, 14, who witnessed the shooting of her sister. Jeffrey and Brandi Franz are representing the minors.

The ones named in the lawsuit from the district are Superintendent Timothy Throne, Oxford High School Principal Steven Wolf, Dean of Students Ryan Moore, two school counselors, two teachers, and a staff member.

Two teachers reported concerning behavior from shooter Ethan Crumbley,15, including one just hours before the shooting. The Franz family alleges that the superintendent and the principal disregarded threatening messages posted on social media by Crumbley. They also allege that the schoolteachers and counselors did not report Crumbley’s behavior to the school safety liaison officer and that Wolf, Moore, both counselors, one teacher, and a staff member excluded the officer in meetings with Crumbley and his parents.

The shooting took place on November 30, in Oxford, Michigan. Crumbley is accused of killing four students and injuring six other students and one teacher after opening fire in the school with a 9mm handgun. The death toll makes this one of the deadliest shootings at a US K-12 campus since the 2018 Parkland shooting. In court last week Crumbley refused to speak, a lack of plea that Michigan courts treat as a not guilty plea.