CHICAGO (WLS) -- Police have released new details into the investigation of a double homicide in Sycamore, Ill. earlier this month.
Patricia Wilson, 85, and her son Robert, 64, were found beaten to death August 15.
Friday, the DeKalb County Sheriff's Office released a timeline, indicating the two were killed August 14.
It happened sometime after 7:45 p.m. when Patricia talked with a relative on the phone and before midnight when video shows the victims' stolen car being driven on Route 64 in West Chicago.
Investigators are not yet releasing that video.
The car was recovered in Chicago near Lincoln Park Zoo.
There is a reward of $25,000 for information leading to the arrest and conviction of the persons or persons responsible for the crime.
The DeKalb County Crime Stoppers, with the help of private donations, offered a $25,000 reward for information leading to the arrest and conviction of the person or persons responsible for the deaths.
Anyone with information can contact Crime Stoppers at 815-895-3272 or email Crime Stoppers at firstname.lastname@example.org. Callers to Crime Stoppers can remain anonymous.
In addition, people with information can contact the DeKalb County Sheriff's Office at 815-895-2155.
Police release details on timeline of Sycamore double homicide