Friends and supporters show their emotion while attending a memorial service in Beason, Ill., Tuesday, Sept. 22, 2009, where five members of a family were found slain in their home and a search is still under way for a suspect.
Authorities are seeking the public's help in solving the slayings of five members of a central Illinois family, saying a suspect or suspects may be injured themselves.
Police won't say if they are seeking one or more suspects in the deaths of the family who authorities say died from "blunt force trauma."
On Saturday, Logan County Sheriff Steven Nichols said a "violent struggle took place" and it's highly likely that the person or persons responsible is also injured.
Nichols is asking the public to "take a look at everyone ... they may encounter" for recent injuries, especially to arms, heads and the upper body.
He says injuries could include cuts, bruises or loss of hair.
Authorities found the bodies of Ruth and Raymond Gee and three of their children on Monday at their Beason home.
Nichols said the search is still on for a primer gray pickup truck suspected.
The only survivor of the crime, a three-year-old child, remains in critical but stable condition.
"We expect her to continue to recover," said Logan County Sheriff Steven Nichols.
Authorities continue to search for a Ford Ranger, and have received "in excess of 100" tips on the case.
No arrests have been made, the Chicago Tribune reported.