On Oct. 18, one person was killed and five others injured at ZombieCon in Florida after a shooter opened fire into the crowd. When police arrived at the scene, they found 20-year-old Expavious Tyrell Taylor suffering from a bullet wound—two minutes later he was pronounced dead at the scene.

Now Estella Wilson, Taylor's grandmother, has filed a wrongful death lawsuit in Lee County Circuit Court, Newsweek reports. The suit names Pushing Daizies, ZombieCon's sponsor, and Southwest Florida Security and Investigations, the company in charge of security for ZombieCon. "I don't think they were equipped to handle a crowd of this size," said Wilson's attorney, Charles Sinclair, adding that they're also "investigating the possibility that the police or city dropped the ball as well." 

Sinclair said he wanted to sue for an amount that honored Taylor's life and got the attention of defendants—thus the $5 million. Police have yet to uncover a suspect, murder weapon, or motive, although witnesses have described the gunman as "a white or possibly Hispanic man in his late teens or early 20s," a.k.a. half the population of ZombieCon. Tyree Hunter, who was injured in the shooting, told Newsweek the gunman opened fire without warning and for no apparent reason.