Illinois Shooting Update: 2 boys, 3 adults shot to death in Manchester ID'd by police

Brittney Luark, 23, seen with her two children Brantley Ralston, 1, and Nolan Ralston, 5, was killed in Manchester, Ill. on April 24, 2013. Her boyfriend, James Roy Ralston, 29, (upper right) also was killed. Her older son is also seen in the lower right panel. Luark's grandmother, 67-year-old Jo Ann Sinclair, not pictured, also was killed.
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(CBS/AP) MANCHESTER, Ill. - Authorities say the five people found shot to death inside a home in a tiny central Illinois community were two young brothers, their parents and their great-grandmother.

Illinois State Police identified the child victims as 1-year-old Brantley Ralston and 5-year-old Nolan Ralston. Their slain parents are 29-year-old James Roy Ralston and 23-year-old Brittney Luark, who was also pregnant.

The fifth victim is Luark's grandmother, 67-year-old Jo Ann Sinclair.

A sixth victim, a 6-year-old girl, was injured and taken to a hospital in Springfield.

"The offender took the 6-year-old out of the residence and put her in the hands of a neighbor," State Police Lt. Col. Todd Kilby said.

The bodies were discovered Wednesday inside a home in Manchester, located about 50 miles west of Springfield.

A short time after the bodies were discovered, the suspect in the shootings, 43-year-old Rick Odell Smith, was killed in a gun battle with police.

Officials have not revealed a motive for the killings. Authorities believe Smith, who is the nephew of the town's mayor, was acquainted with the victims, but they didn't provide details of the relationships.

Complete coverage of the Illinois shootings on Crimesider