Friends said the couple were generous, modest, casual, and down to earth.
Joel Ulster, a friend of Barry Sherman since they were 16 years old, said his friend was an aggressive businessman with a big heart.
"With Barry it was no ********, pretty much all of the time," he said.
Newspaper magnate Paul Godfrey said their loss leaves a great vacuum in Toronto society.
"It's just an awful feeling to have, to know they will no longer be there," he said before the service began.
[h=2]'Enthusiasm for life'[/h]But questions around the couple's death was not far from the thoughts of those attending the memorial.
"We have to wait to find out what happened here - that's the sad part," said Mr Godfrey.
He said the homicide detectives on the case were "the best in the business, so hopefully we'll get an answer to what really happened".