GRAND ISLAND -- A northeast Nebraska man was credited with helping save the lives of others by blocking an entryway with his body during a deadly shooting in Superior last month.

The Nebraska State Patrol laid out the details of their investigation, as well as a detailed timeline of events, during a press conference on Wednesday.

53-year-old Darin Koepke, of Hadar, was one of two people killed by 61-year-old Max Hoskinson at the Agrex elevator, hours after Hoskinson had been fired by the elevator. Lt. Brent Bockstadter said Koepke and another individual recognized the sounds of gunshots after Hoskinson had returned to the site and threw themselves in front of the door to block it. Hoskinson then fired a shot, which ultimately killed Koepke.

60-year-old Sandra Nelson, of Kansas, was also killed in the shooting. Hoskinson later died after being shot by an Agrex employee. NSP said it is considering all of the surviving employees as victims, so they will not be releasing any names, including the name of the person who shot Hoskinson.

“The actions of Mr. Koepke saved lives, and he unfortunately ended up giving his own life in the process,” Bockstadter said.

The shooting remains under investigation.