Canada: At least 16 people killed in country's deadliest mass shooting General Info Provider Sky NewsTabulations only Geography Canada (CAN) Nova Scotia Coverage type Subnational Time period covered April, 2020 - April, 2020 Data type Event data Keywords Mortality, Violence Citation Contributors Sky News Publisher Sky News Publication year 2020 Suggested citation Sky News. Canada: At least 16 people killed in country's deadliest mass shooting. Sky News [Internet]. 2020 Apr 20.