police say a gunman opened fire on a group of friends talking on the sidewalk. 24-year-old stravensky odige of dorchester was killed in the gunfire. no arrests at this time. across the city, thousands of students are settling into their classrooms for the start of the school year. mayor marty walsh and superintendent tommy chang were at the new mission high school bright and early this morning, to welcome students back and wish them well. school and city leaders are visit each school in boston today. they spoke with newscenter 5 about their goals for the upcoming year. >> it's a challenge every year making sure we keep our kids in the school. make sure nothing happens, and continue to have a strong education. >> we have to raise our expectations of they are prepared for high school. >> after a year plagued with racial issues and unsafe drinking water they say there are new systems in place. boston latin is under new leadership. and more than 70 teachers have committed to courageous conversation workshops. new changes are coming to boston's city hall this fall. the city announced yesterday p