Clues That Mona Was "A" on Pretty Little Liars 

in season 1 episode 4 when hanna is in the car waiting for spencer to say bye to wren, A dedicates a song to her on the radio. The radio guy says "To Hanna, from your best friend, A." Mona was Hanna's best friend at the time! This is such a big clue, can't believe i didn't spot it at the time!

omg that is so true. but what makes me wonder is why mona and the rest of the "A" team are torturing the plls.