Slain teen’s parents describe grief as killer sentenced to life ← Related Article Visit The Boston Globe Share on Twitter Share on Facebook Comment on this Scroll to top of page Left: NECN screen capture; Right: AP The mother of Elizabeth “Lizzi” Marriott spoke at the sentencing for Seth Mazzaglia (left). Jim Cole/AP Bob Marriott held up a photo of his daughter during the hearing. Jim Cole/AP Marriott's uncle, Tony Hanna, looked at Seth Mazzaglia as he spoke. Jim Cole/AP Marriott's aunt, Becky Hanna, gave a victim impact statement. NECN screen capture Mazzaglia and his attorneys stood during his sentencing. Jim Cole/AP Seth Mazzaglia looked back at his mother as he was escorted out of the court after his sentencing.