PUBLIC SAFETYPolice on-scene investigating double murder-suicide in rural Boone County near ZionsvilleThe scene where police are investigating the deaths of a father and two children as a double murder-suicide in an area northeast of Northfield in rural Boone County, near Zionsville, Ind., Friday, Sept. 21, 2018. After their mother was unable to contact the children, police found Michael Hunn, 50, and Zionsville students Harrison Hunn, 15 and Shelby Hunn, 13, dead inside Michael's home at around 11 a.m. Friday.Jenna_Watson/Indy_StarBoone County Sheriff Mike Nielsen shares an update with media on-scene where police are investigating a double murder-suicide involving a father and two children in an area northeast of Northfield in rural Boone County, near Zionsville, Ind., Friday, Sept. 21, 2018. After their mother was unable to contact the children, police found Michael Hunn, 50, and Zionsville students Harrison Hunn, 15 and Shelby Hunn, 13, dead inside Michael's home at around 11 a.m. Friday.Jenna_Watson/Indy_StarOfficers listen as Boone County Sheriff Mike Nielsen shares an update with media on-scene where police are investigating a double murder-suicide involving a father and two children in an area northeast of Northfield in rural Boone County, near Zionsville, Ind., Friday, Sept. 21, 2018. After their mother was unable to contact the children, police found Michael Hunn, 50, and Zionsville students Harrison Hunn, 15 and Shelby Hunn, 13, dead inside Michael's home at around 11 a.m. Friday.Jenna_Watson/Indy_StarThe scene where police are investigating the deaths of a father and two children as a double murder-suicide in an area northeast of Northfield in rural Boone County, near Zionsville, Ind., Friday, Sept. 21, 2018. After their mother was unable to contact the children, police found Michael Hunn, 50, and Zionsville students Harrison Hunn, 15 and Shelby Hunn, 13, dead inside Michael's home at around 11 a.m. Friday.Jenna_Watson/Indy_StarThe scene where police are investigating the deaths of a father and two children as a double murder-suicide in an area northeast of Northfield in rural Boone County, near Zionsville, Ind., Friday, Sept. 21, 2018. After their mother was unable to contact the children, police found Michael Hunn, 50, and Zionsville students Harrison Hunn, 15 and Shelby Hunn, 13, dead inside Michael's home at around 11 a.m. Friday.Jenna_Watson/Indy_StarThe scene where police are investigating the deaths of a father and two children as a double murder-suicide in an area northeast of Northfield in rural Boone County, near Zionsville, Ind., Friday, Sept. 21, 2018. After their mother was unable to contact the children, police found Michael Hunn, 50, and Zionsville students Harrison Hunn, 15 and Shelby Hunn, 13, dead inside Michael's home at around 11 a.m. Friday.Jenna_Watson/Indy_StarThe scene where police are investigating the deaths of a father and two children as a double murder-suicide in an area northeast of Northfield in rural Boone County, near Zionsville, Ind., Friday, Sept. 21, 2018. After their mother was unable to contact the children, police found Michael Hunn, 50, and Zionsville students Harrison Hunn, 15 and Shelby Hunn, 13, dead inside Michael's home at around 11 a.m. Friday.Jenna_Watson/Indy_StarOfficers return to the scene after Boone County Sheriff Mike Nielsen shared an update with media about a police investigation of a double murder-suicide involving a father and two children in an area northeast of Northfield in rural Boone County, near Zionsville, Ind., Friday, Sept. 21, 2018. After their mother was unable to contact the children, police found Michael Hunn, 50, and Zionsville students Harrison Hunn, 15 and Shelby Hunn, 13, dead inside Michael's home at around 11 a.m. Friday.Jenna_Watson/Indy_StarThe scene where police are investigating the deaths of a father and two children as a double murder-suicide in an area northeast of Northfield in rural Boone County, near Zionsville, Ind., Friday, Sept. 21, 2018. After their mother was unable to contact the children, police found Michael Hunn, 50, and Zionsville students Harrison Hunn, 15 and Shelby Hunn, 13, dead inside Michael's home at around 11 a.m. Friday.Jenna_Watson/Indy_Star