“You’ve never contributed one thing to this world. What you did that night was pathetic,” she said.
“I hope you can’t sleep at night… I hope it haunts your every waking minute.”
On the night Lyra was killed an MTV crew were filming a documentary in Derry.
However, the MTV camera crew had left the scene before the shooting took place.
During the trial, in footage played in court, TV presenter Reggie Yates could be heard saying: “If people are saying we’re inciting it, then maybe we should call it a night.”
Sara said the killer was “showing off for Reggie Yates – that’s really pathetic”.
“It was showing off for cameras, it wasn’t to free Ireland, it wasn’t to make the life of people in Creggan and Derry and Ireland better.”