Chain-of-custody concerns and next steps

Prime Minister Mark Carney and the leaders of every party in the House of Commons came together to lay flowers at a memorial in Tumbler Ridge, B.C., on Friday, before attending an evening vigil in the community. NDP interim Leader Don Davies, Green Party Leader Elizabeth May and the region's provincial MLA Larry Neufeld join Power & Politics to reflect ahead of the vigil. Plus, the RCMP reveal more information about the weapons used in Tuesday's mass shooting.