One of the main complaints in the immediate aftermath of the April 18-19, 2020 mass casualty events was the use by the RCMP of social media posts to warn the public, rather than issuing an emergency alert to citizens’ cell phones, and then the low degree of accuracy of the content of those posts. Today, after a brief presentation by Commission lawyer Anna Mancini, three witnesses attempted to explain why Twitter was the primary communication platform chosen, and why accurate information was so seemingly difficult to provide to the public. By now, we know that key information such as the fact that the killer was in a fully marked replica RCMP car, his name, and that he had not been captured was known to at least some RCMP officers since before 11pm on the night of the 18th. At 11:32pm, a tweet was issued from the RCMP account noting that there was a firearm complaint in the Portapique area and that people should stay in their homes. Nothing else was sent out until 8:02am the next morning. Eleven further tweets were issued, but there were delays in issuing photos of the perpetrator and his replica car, and each time a tweet was sent, the information was delayed so much so as to be of little practical use. As a result, even those such as Kristen Beaton, who was tracking social media that morning, did not have information that was known to police, which they could have used to protect (and likely save) themselves. The witnesses today were retired Cpl. Jennifer Clarke, who people may recognize as a frequent spokesperson for the RCMP in Nova Scotia, Glenn Mason from EMO, and Superintendent Dustine Rodier. Cpl. Clarke was involved in the drafting and sending of the tweets. Mr. Mason was the EMO official who offered the RCMP use of the Alert Ready system. Spt. Rodier was in charge of the Operational Communications Centre, and has been a central focus of questions around the failure to use the Alert Ready system.