The Parole Board of Canada says a drunk driver who killed four people, including three children, still lacks insights into his drinking prior to the crash.

Marco Muzzo was granted full parole earlier this month but the parole board released its written reasons on Wednesday.

In the document, it says Muzzo has made a lot of progress but continues to struggle with issues related to alcohol and empathy.

It notes Muzzo told the two-member panel he considered his alcohol use before the crash “under control and manageable” and either was unaware of some of his other driving infractions or trying to minimize them.

Muzzo was sentenced to 10 years in prison in connection with the 2015 crash that killed Daniel Neville-Lake, 9, his five-year-old brother Harrison, their two-year-old sister Milly and the children’s 65-year-old grandfather, Gary Neville.