One person was killed and five others were injured when a shooting broke out at the annual ZombiCon festival in Fort Myers, Florida.
As of Sunday, the gunman has not been caught.
Hundreds dressed as zombies fled in real terror Saturday night.
Someone opened fire at the crowded ZombiCon street festival in Fort Myers just before midnight and the official end of the festivities.
One man died at the scene.
He was identified as 20-year-old Expavious Tyrell Taylor, a football player at a local junior college.
Four others were taken to the hospital with non-life-threatening injuries. One person refused treatment.
Police searched the area for a suspect but did not arrest anyone.
The event has been running for eight years and attracts more than 20,000 people to the city.
But not everyone likes it. The festival has been the subject of protests and some community complaints.
Police are asking for help from the public who may have cell phone pictures or videos to share.
The organizers of the event posted a message on the festival's Facebook page saying in part, "We take the safety of our patrons very seriously and take precautions in hiring security and police officers for our annual event."