. ,,,, >> pelley: rebecca ann sedgwick was laid to rest today just shy of her 13th birthday. she was known as beca and she took her life after being bullied relentlessly by kids from the internet. she left behind a message about the power of words. >> reporter: many of the teens at rebecca ann sedgwick's funeral wore t-shirts to drive a message. rebecca's mother. >> what was said to rebecca that you will never be able to erase from your memory? >> "if you haven't killed yourself yet, jump off of a building." because that's what she did. sorry. >> in the hours before she jumped from this tower, rebecca left phone and online messages to her closest friends to say goodbye. does this grieve you that she didn't open up to you that it had started again? >> it makes me angry and it hurts, because she always came and told me everything. >> reporter: the worst taunts came from a group of 15 students. they began last year. >> i started seeing her and then she went to counseling three or four months after that. her last appointment, the counselor asked her how she felt and she said she