Published Friday, July 9, 2021 5:15AM EDT Last Updated Friday, July 9, 2021 12:33PM EDT A Toronto teacher accused in the drowning of a student on a school canoe trip fell short of his responsibility to keep the kids in his care safe, even in his approach to planning the excursion, a prosecutor argued Friday as she delivered her closing submissions. Crown Attorney Anna Stanford urged the judge in the case to consider the totality of Nicholas Mills's actions in deciding whether he was criminally negligent in the boy's death, rather than weighing each of the teacher's decisions individually. “The swimming event on that day cannot be considered in isolation,” she said. “Mr. Mills engaged in a course of conduct leading up to and including the trip that undermined the safety of all the students on the trip and ultimately caused Jeremiah Perry's death. Each interconnected act or omission by Mr. Mills put Jeremiah and others in danger.”