CHICAGO _ A Mundelein, Ill., teen died Sunday evening after he was found unresponsive at the Lollapalooza music festival in Chicago. His mother suspects he may have suffered a seizure.
Evan Kitzmiller, 16, was found around 7:50 p.m., police said.
He was transported by private ambulance from the festival to Northwestern Memorial Hospital where he was pronounced dead just before 9 p.m.
The cause of the teen's death has yet to be determined. An autopsy will be conducted at the Cook County Examiner's office.
The city's Office of Emergency Management and Communications labeled the incident a "medical emergency," and said it remained under investigation.
"Our thoughts and prayers are with his family and friends at this time," an OEMC statement read.
Chicago Police Department detectives have launched a death investigation.
Melissa Kitzmiller, the teen's mother, said she believes her son had a seizure and that his heart stopped.
An emotional Kitzmiller said Monday morning that her son did not have epilepsy and at this point she doesn't know what caused the seizure.
"He was at Lollapalooza and he had the time of his life," Melissa Kitzmiller said.
She said Evan attended all four days of the annual event in Grant Park and he often checked in with her to share stories from the music festival.
"He liked them all," she said of the musical acts. "They were all the people he listened to," she said.
It was unclear who came to the teen's aid at the concert, Melissa Kitzmiller said.
"They didn't know much at the hospital. He came in alone," she said.
Evan would have been a junior at Mundelein High School. He played on the school's freshman baseball team two years ago, his mother said.
