MILWAUKEE (CBS 58) -- The man convicted of killing 19-year-old Sade Robinson started his appeal process Tuesday, Aug. 5. 

Maxwell Anderson was sentenced to life in prison without the possibility of parole just last week in a hearing during which he addressed the court, maintaining his innocence. 

"I took this to trial without ever once trying to make a plea deal of any kind because I did not commit these crimes," Anderson said. 

Anderson was convicted back in June on three charges, including first-degree intentional homicide. A restitution hearing in his case is set for next month. 

Anderson is also facing a wrongful death lawsuit filed by the family of Sade Robinson. That case is scheduled to resume Aug. 15.