From NBC's Les Kretman and Domenico Montanaro
The Secret Service has arrested and is questioning a 30-year-old man for tossing a shoe this afternoon over the South fence of the White House.
Officers identifed the man as Ryan Hill. No hometown was given.
Hill has been charged with disorderly conduct. He's still undergoing questioning, but it's likely he won't be held, sources said.
Sounds like he was channelling this guy...