A spokesperson for the family of a boy beaten at Six Flags America believes a movie plot may have motivated chaos that sent him and two other teenagers to the hospital Saturday night.
One of the victims, a 15-year-old boy in a medically induced coma, underwent surgery Tuesday to remove a portion of his skull to allow his swelling brain to expand and heal.
"He's going to be in ICU for at least two weeks," said family spokesperson Zina Pierre.
The teen was punched twice and fell to the ground in the parking lot, striking his head on the concrete, family members said.
"They proceeded to beat him as he fell back and cracked his skull and was unconscious, they continued to beat him," Pierre said.
Prince George's County police said they were called in to handle a large crowd leaving the park around 9 p.m. Saturday, the opening night of Fright Fest; a spokesperson said there was significant pedestrian and vehicular traffic causing the backup.
According to witnesses, a number of fights spread throughout the crowd. In addition to the teen attacked in the parking lot, a 13-year-old girl and a 15-year-old were injured inside the park and were also hospitalized.
Police are investigating what led to the night of chaos, reported Prince George's County Bureau Chief Tracee Wilkins. Before Fright Fest, students tweeted that the theme for opening night would be "The Purge," a movie in which crimes are permitted without any consequences for one night.
"They heard different people chanting 'purge, purge' at various points throughout the evening," Pierre said.
Prince George's County Police spokesperson Julie Parker said Wednesday morning she is aware of the social media posts, but the department is not investigating whether teens were trying to imitate a movie plot.
Six Flags was not responsible for the theme and appears to have had no knowledge of it, Wilkins reported.
In a statement Sunday, park spokesperson Havilah Ross said, "The unacceptable behavior and events that occurred yesterday, acted out by some unsupervised youth, are in no way typical behavior for our park or the surrounding area.
"The safety of our guests is our number one priority and while this was an isolated incident, we are taking steps to make sure it cannot be repeated," the statement read.
Six Flags says it has increased security and traffic enforcement.
Down the street, a McDonald's manager confirmed the restaurant also called police due to unruly behavior.
This article has been corrected.