-- A fight that began at a McDonald's last night escalated into a street brawl that resulted in two stabbings and landed eight in jail. Police say that three girls assaulted a fourth at a Roxbury McDonald's around 7:00pm last night, a fight that ended when an onlooker called 911. Police captured the three suspects, two 15 year-olds from Dorchester and a 16 year-old from Roxbury. But it didn't end there. An hour later and......