The four family members found dead Tuesday in an unincorporated Downers Grove home died from gunshot wounds to the face in a murder-suicide, officials confirmed.
The family was identified Wednesday as Jeana Andrus, 48, Jessica Andrus, 22, Jennifer Andrus, 16, and David Andrus, 50, the DuPage County Sheriff's Office said in a news release. Their autopsies were completed Wednesday.
The three female deaths in the family home were ruled homicides, and the male death was ruled a suicide, the DuPage County Sheriff's Office said. The daughters were shot at close range, and the man fired a gun into his own mouth, DuPage County Coroner Richard Jorgensen told the Daily Herald.
The Andrus family deaths occurred at about 3:30 p.m. June 11 at their home, according to the Sheriff's Office. Sources in the Chicago Tribune and the Daily Herald suggest the father is the shooter but neither Jorgensen nor the Sheriff's Office have directly confirmed this, citing an open case.
"Sheriff Detectives believe that all individuals involved in this incident have been identified," the release said. "This is an ongoing investigation and no further information is available at this time."
Sources previously said that the deaths were being investigated as a man shooting three family members to death before committing suicide.
The Chicago Tribune quotes a source saying that David Andrus shot his wife Jeana in the basement before going upstairs to shoot his daughters and himself; another source is quoted saying that Andrus had recently lost his job in Willowbrook.
In a release, the DuPage County Coroner originally said that "it appears the [four] bodies received gunshot wounds" and that autopsies were being performed on Wednesday.
The Andrus family lives near the Tara Hill subdivision, and their house is just 100 yards from the site of the March 2010 triple-murder of the Kramer family. The highly public trial of the man who arranged it ended last month in a conviction.
Additionally, the Andrus surname is prominent in Darien history. According to the City of Darien website, in 1835, Thomas Andrus and his family were among the first settlers in Darien and operated the Andrus Inn. A street near the Andrus' house is called Andrus Road. (A neighbor, Kelly Glisan, told the Tribune that the Andruses were "an old-time, multi-generational family.")
Police blocked off Oldfield Road between Andrus and Robert Roads Tuesday afternoon, and it was still closed at 11 p.m. Tuesday when news vans and reporters began to disperse from the scene. Residents approached the area in cars and on foot throughout the day to see what was going on.
Some police or SWAT team officers in full gear were staged during the initial Tuesday afternoon call on Jennifer Mazzei's street, which is directly north of the property where the deaths occurred.
"They were coming back and getting their weapons and everything, so we knew something was up," Mazzei said. "It was scary here for awhile."
Patch Crime Editor Charles Menchaca contributed to this report.