Live Boston reports that around 5:30 this morning, a cab driver walked into the D-14 police station in Brighton with a freshly opened forehead, which she said she got minutes before when he arrived at 28 Jette Way in the Fidelis Way development to pick up a woman, who got in bearing a hammer and a buthcer knife and then used the sharper implement to try to carve open her head. The suspect then ran away. The driver is expected to recover.