BAGHDAD, Iraq - American reporter Jill Carroll was set free Thursday, nearly three months after she was kidnapped in a bloody ambush that killed her translator. She said she had been treated well. Carroll, 28, was dropped off near the Iraqi Islamic Party offices. She walked inside, and people there called American officials, Iraqi police said. "I was treated well, but I don't know why I was kidnapped," Carroll said in a brief interview on Baghdad television.