(FAMILYHOTOS,ASK.FM, WESH, FACEBOOK.COM, INSTAGRAM, TWITTER.COM, POLK COUNTY SHERIFF'S OFFICE/CNN) - Twelve-year-old Rebecca Sedgwick killed herself after months of brutal cyber bullying.
Now, two girls - aged 12 and 14 - have been charged with aggravated stalking in connection with the death.
The parents of the 14-year-old have agreed to show their faces on camera for the first time.
Vivian and Jose - who didn't want their last name revealed - are the parents of a 14-year-old girl identified by police as a cruel online bully, accused of contributing to Rebecca Sedgwick's suicide.
"My daughter is not that type of girl to do something like that," Vivian said.
Police arrested two girls they say are behind the bullying - but Vivian and Jose say there's no way their teenager relentlessly taunted Sedgwick with hurtful messages like:
"You should die" and "why don't you go kill yourself" repeatedly on social media.
Sedgwick reached her breaking point last month, jumping off this abandoned cement silo.
The sheriff says the arrests happened so quickly, in part, because of this disturbing comment allegedly posted on Facebook by Jose and Vivian's daughter.
"Yes, I know I bullied Rebecca and she killed herself but [I don't give a (expletive)]."
"It went out around one o'clock. We took the computer to our room. And the only other thing that she could have used to send this message was my cell phone, and my cell phone is always with me," Jose said.
"I always check her Facebook. I know her password. She never once bullied this girl online," Vivian said.
But the bullying may have gone beyond Facebook.
Other social media sites, including Twitter, Instagram, ask.fm and kik, have all been cited by Sedgwick's family.
"I never once come across those websites that they're saying my daughter was on. Because the only one that she had was Facebook," Vivian said.
"To our knowledge," Jose said.
As the investigation continues, the sheriff says Jose and Vivian could soon be faced with charges too.
"I don't think it's fair for me and my husband to be you know, punished for something that they're saying that my daughter did," Vivian said. "And my daughter is being punished for something that she didn't do."
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