Coquitlam RCMP investigating after 2 seniors dragged down stairs by officers

Video shows child screaming as police officers forcefully arrest an elderly couple in B.C. WARNING: Video contains disturbing images and sounds. To read more: »»» Subscribe to CBC News to watch more videos: Connect with CBC News Online: For breaking news, video, audio and in-depth coverage: Find CBC News on Facebook: Follow CBC News on Twitter: For breaking news on Twitter: