Jason Russell, the narrator and director of the "Kony 2012" video about African warlord Joseph Kony that went viral, was detained by police late last week after witnesses saw him running naked through the streets, screaming and banging his fists on the pavement.
By the time police arrived on the scene, Russell was only in his underwear and acting irrationally. He was taken to a mental facility for observation.
On Monday, Russell's wife Danica released a statement denying alcohol or drugs were involved in his bizarre behavior. She said her husband was suffering from "extreme exhaustion and dehydration."
Danica Russell said her husband was under stress and that he "never had a substance abuse or drinking problem, and this episode wasn't caused by either of those things."
She also suggested that criticism of the film led to her husband's behavior.
"Because of how personal the film is, many of the attacks against it were also very personal and Jason took them very hard," the statement said.
Russell's parents operate the local Christian Youth Theater in El Cajon, Calif. The filmmaker is a graduate of USC and co-founded Invisible Children, which is now headquartered in downtown San Diego.
Ben Keesey, Invisible Children's chief executive, acknowledged Friday that Russell had been hospitalized.
"Jason Russell was unfortunately hospitalized yesterday suffering from exhaustion, dehydration, and malnutrition," Keesey said in a statement.
"He is now receiving medical care and is focused on getting better," he said. "The past two weeks have taken a severe emotional toll on all of us, Jason especially, and that toll manifested itself in an unfortunate incident yesterday."