Lori Berenson was released on parole three months ago. But the mother of a 15-month old was sent back to prison Wednesday, after a judge in Peru struck down her parole. Berenson has served 15 years of a 20-year sentence. She was convicted of aiding Peruvian leftist rebels.
Authorities were searching the country's dry, sparsely populated northern provinces for Joran van der Sloot.