Suspect gunned down by Boston police after chase

BOSTON -- Police shot an unarmed man to death as he drove a stolen car toward an officer after a chase, authorities said.

It was the sixth fatal shooting by Boston police in 18 months.

Police said Nelson Santiago, 39, was driving a stolen Toyota Camry Tuesday when he evaded one set of officers.

A second pair later picked up the pursuit and cornered him on a dead-end street. Santiago tried to make a U-turn and struck their cruiser twice, police said.

He then allegedly drove toward one of the officers, and both opened fire, striking Santiago multiple times.

The officers' names were withheld.