MINNEAPOLIS (September 29, 2012)--A fifth victim of a shooting at a Minneapolis sign company has died, police said.

Sgt. Stephen McCarty said the victim died sometime Friday at Hennepin County Medical Center to which he was taken there in critical condition after the attack Thursday afternoon.

His death raised the total number of those killed in the attack to six, including the gunman.

The gunman was among five people found dead at the scene of the shooting at Accent Signage Systems.

Police say he killed himself after opening fire at the small sign-making company on the city's north side.