Four slain on Metro system in 2012

Four homicides occurred on the Metro system in 2012, even as jurisdictions around the region celebrated massive reductions in the number of slayings.

The transit agency had three people slain on its bus system, including 20-year-old Selina Brown as she held her toddler in her arms last month. And 18-year-old Olijawon Griffin was fatally stabbed in the Woodley Park Metro station on Nov. 17, apparently over his jacket and cellphone.