9/28/12 7:50am UPDATE

A man who apparently had just lost his job at a small business in Minneapolis’ Bryn Mawr neighborhood returned to the building Thursday afternoon and opened fire, killing the company’s founder and three others and wounding four others before taking his own life.

Two other company executives, director of operations John Souter and production manager Eric Rivers, were in critical condition at Hennepin County Medical Center. Hospital officials said one other victim was in critical condition and a fourth was in satisfactory condition. Those two wounded victims have not been identified.

Police swarmed to the chaotic scene, which unfolded just after 4:30 p.m. inside Accent Signage Systems, 2322 Chestnut Av. W. One of the dead was company founder Reuven Rahamim, a business associate of Rahamim said late Thursday.

As those from the neighborhood who heard the shots fled in fear or gathered nearby seeking information, officers from many law enforcement agencies, including SWAT team specialists, swarmed to the scene. About an hour into the incident, scanner reports came that the shooter was dead of a self-inflicted gunshot in the building’s basement. Although his name was not released or confirmed by police or the company, sources identified him as Andrew J. Engeldinger, 36. Late Thursday, the south Minneapolis house Engeldinger owns and occupies was searched by rifle-toting law enforcement personnel wearing body armor.