New footage emerged over the weekend of Invisible Children's co-founder Jason Russell publicly cursing and ranting in the nude along a street corner in San Diego.
TMZ released footage of the "Kony 2012" filmmaker pounding the ground, pacing back and forth while shouting "You're the devil."
San Diego police detained Russell and took him to a medical facility for further evaluation under a psychiatric hold. No charges were filed.
NBCSanDiego.com was the first to break the story on Friday.
"Jason Russell was unfortunately hospitalized yesterday suffering from exhaustion, dehydration, and malnutrition," Invisible Children CEO Ben Keesey said following the incident.
The organization was behind the popular "Kony 2012" video that went viral in early March. The 30-minute video, which has been viewed more than 80 million times on YouTube, centers on former Uganda dictator Joseph Kony and his army, which is still in power in Uganda.
The video garnered attention from high-profile celebrities, including Angelina Jolie, Justin Bieber and Oprah. Critics voiced concerns over the group's finances and the accuracy of the film.
Facebook followers on NBC LA's page suggest with Russell's public breakdown, the movement may be damaged.
"It's over. Without Russell, the movement is dead," wrote Josh Alvarado.
"Poor dude. There goes his so-called credibility," wrote Efren Hernandez.
Others called for compassion.
"I hope when the truth comes out about the reasons behind Jason's public breakdown, you will have the compassion and integrity to carry that story as well," wrote Rhoda Etzold Finck.