A Ramsey County grand jury has decided not to indict St. Paul police officers who shot and killed carjacking suspect Yee Vang last year.

The decision, reached Wednesday, involved officers Laura Finnegan, Dean Gleason, Xiong Yang and Shawn Filiowich.

In order to return an indictment, at least 12 members of the 23-member grand jury must agree that charges are merited. It's unclear how the grand jury voted on the Vang case because grand jury proceedings are secret in Minnesota.

Vang, 20, of St. Paul, was killed about 4:30 p.m. on Aug. 3 after exchanging gunfire with police in St. Paul's Frogtown neighborhood. Minutes before the confrontation, the vehicle Vang was driving had allegedly struck an occupied vehicle and crashed into a fence. A witness said that Vang fled on foot, at one point pulling a gun on a bicyclist and jumping on the bike.

But Vang fell off the bicycle, and allegedly stopped a sport-utility vehicle at gunpoint and jumped into the back seat.

Police pursued the SUV, which eventually stopped. Police said that's when Vang jumped out of the vehicle and opened fire on them. Officers returned fire and struck Vang, who died en route to Regions Hospital.