People: “According to sources familiar with the matter, authorities believe Sicknick's death was driven by a medical condition. They're also investigating reports that he was attacked with a fire extinguisher or another item at the Capitol, sources said. So far, reports of an attack haven't been confirmed and authorities are hoping to locate video or other imagery from the scene.” https://abc7.com/federal-murder-probe-opened-for-capitol-police-officer-who-died-in-riots/9491943/