This Sept. 17, 1989 photo shows Irwin L. Jacobs with his wife, Alexandra, and three of their daughters in front of their Lake Minnetonka, Minn., mansion. Authorities are investigating the deaths of two people found Wednesday, April 10, 2019, at the house of Jacobs, a prominent Minnesota businessman who once owned a minority share in the Minnesota Vikings NFL team. (Star Tribune via AP)

This aerial photo shows Irwin Jacobs home in Orono, Minn., Wednesday, April 20, 2019. Authorities are investigating the deaths of two people found at the Lake Minnetonka mansion of Irwin Jacobs, a prominent Minnesota businessman who once owned a minority share in the Minnesota Vikings NFL team. (Aaron Lavinsky/Star Tribune via AP)

This June 16, 2009 photo shows Irwin L. Jacobs. Authorities are investigating the deaths of two people found Wednesday, April 10, 2019, at the Lake Minnetonka, Minn., mansion of Jacobs, a prominent Minnesota businessman who once owned a minority share in the Minnesota Vikings NFL team. (Glen Stubbe/Star Tribune via AP)

Law enforcement personnel confer outside a home in Orono, Minn., Wednesday, April 10, 2019. Authorities are investigating the deaths of two people found at the Lake Minnetonka mansion of Irwin Jacobs, a prominent Minnesota businessman who once owned a minority share in the Minnesota Vikings NFL team. (Richard Tsong-Taatarii/Star Tribune via AP)