A WSJ analysis of videos, photos and satellite images from four weeks in March reveals how Russian forces destroyed civilian infrastructure through a series of shellings, with remnants of weapons indicating the use of cluster bombs. Photo illustration: Laura Kammermann WSJ video investigations use visual evidence to reveal the truth behind the most important stories of the day. More from the Wall Street Journal: Visit WSJ.com: http://www.wsj.com/ Visit the WSJ Video Center: https://wsj.com/video On Facebook: https://www.facebook.com/pg/wsj/videos/ On Twitter: https://twitter.com/WSJ On Snapchat: https://on.wsj.com/2ratjSM #Russia #Ukraine #WSJ