Elizabeth Wettlaufer, who pleaded guilty last month to eight counts of first-degree murder, four counts of attempted murder and two counts of aggravated assault, was sentenced Monday to life in prison with no eligibility for parole for 25 years.
She also pleaded guilty to aggravated assault against Clotilde Adriano, 87, and Albina Demedeiros, 90.
There were problems with Wettlaufer - who had a history of problems administering medication - that were missed, said Jane Meadus, a lawyer with the Advocacy Centre for Elderly (ACE).
"You simply can not blame yourselves", he said to the family and friends of Wettlaufer's victims. During a taped interview with police of nearly three hours, which was played in court, Wettlaufer said: "I honestly thought God wanted to use me", and that she got a "laughing feeling" when she killed someone.
The court heard about the lives of her victims before they found themselves changed by illness, dementia and Alzheimers. Thomas said she met Matheson in 1969, and that the two maintained their friendship right up until Matheson's death.
"I've submitted mine, but I'm not going to read it", Jackson said.
Thomas said she had a "medical episode" upon learning of the circumstances of her friend's death.
Bertram has since isolated herself, never leaving home to attend the church activities that were important to her and is afraid of new people.
Arpad Horvath Jr. said he put everything he had into his victim impact statement, crafting it carefully.
"I lost my mother for the second time".
Jon Matheson's wife read his statement in court.
Most chilling, perhaps, was the account of Sharon Young, the niece of victim Helen Young. Mary was made to die alone without her family by her side.
Sharon also shared memories of her personal encounters with Wettlaufer, whom she said was "not very empathetic".
After administering the insulin, a drug not heavily regulated at the homes, she said she felt laughter in her chest.
They said they have been struggling with depression, anxiety and employment difficulties as a result of her murder.
Police were told of the information last September and Wettlaufer was charged and confessed to police, saying she felt a "red surge" that overcame her as she readied to kill.
Grinspun said an inquiry into Wettlaufer's crimes would offer a chance to "tighten the system to improve the lives of residents of nursing homes in Ontario and ensuring such a tragedy never happens again".
Wettlaufer was sentenced Monday to life in prison with no chance at parole for 25 years, in 2041.
All sentences are to be served concurrently, according to the spokeswoman.