A chaotic scene unfolded on Memorial Drive in Cambridge as a gunman opened fire on passing cars, injuring two drivers critically. Witnesses reported that the suspect fired indiscriminately, with estimates of up to 60 rounds being discharged. The incident prompted a swift police response, during which a state trooper engaged the gunman, resulting in the suspect being shot and arrested. Authorities later identified the gunman, Tyler Brown, who has a prior criminal history. The road was shut down for several hours as the investigation continued, with law enforcement assuring the public that there is no ongoing threat. Eyewitnesses described the terrifying chaos, with many running for their lives during the shooting.