Levi Bellfield was found guilty of the murder in June 2011 and received an additional life sentence .
Levi Bellfield had been convicted of two other murders and an attempted murder ( all committed after Amanda 's disappearance ) in February 2008 .
Levi Bellfield , who had been convicted of two other murders and an attempted murder ( all committed after Amanda 's disappearance ) in February 2008 , was found guilty of the murder in June 2011 and received an additional life sentence .