A brazen shooting on a busy roadway in Cambridge, Massachusetts, left two motorists seriously injured after a gunman opened fire on passing vehicles. Authorities say 46-year-old Boston resident Tyler Brown unleashed a barrage of more than 60 rounds along Memorial Drive early Tuesday afternoon. The chaotic rampage was brought to a swift end when state police and a legally armed civilian intervened, shooting and neutralizing the suspect. Brown is currently in custody and faces severe charges, including attempted murder and various firearms violations. Local authorities have launched a comprehensive investigation to uncover the motive behind the daylight attack.