According to reports, De Grood is the son of a Calgary police officer.
The crime location was just north of the University of Calgary campus and it’s believed the party was in celebration of the end of classes.
“This is the worst mass murder in Calgary’s history,” said Calgary Police Services Chief Rick Hanson.
De Grood, who attended the University of Calgary, was planning to attend law school, according to multiple sources.
“We understand the party was for friends and people of the university and the suspect was an invited guest,” said Hanson.”
“Our thoughts and condolences go out to the families who have lost their loved ones in this senseless tragedy. The university community has lost a part of its family, and this is a very difficult time for all of us,” said University of Calgary president Elizabeth Cannon.