I think this is going to blow up in the prosecutors' faces. Karr hasn't been placed in Colorado, much less Boulder during the time of the murder. His wife appears to be an alibi for him and his brother calls the charge "ridiculous".
Unless they can come up with a DNA match to the crime scene, I think this is going to be a big hoax.
His ex-wife and his brother both appear to be alibis for him.... only one problem with that though... one says he was in Alabama, the other says he was in Georgia.
Either way, he's still going to face time in California for his sick doings there.
I'm starting to wonder myself if this guy was looking at hard time in Thailand at some hideous prison where the inmates are pirates from the South China Sea who have facial tattoos, missing fingers, and like to torture pudgy pink Westerners by submerging their heads inside a bucket full of stinging beetles.
If I was faced with that future, I'd probably confess to the murder of the Lindhbergh baby just so the US Marshal's Service would get me the hell out of there posthaste.
Back home in the US, I'd gladly face the charges of lying to a US Federal agent.