LYONS, Ill. (CBS) — Two brothers have been released from custody, but remain the subject of a death investigation, after they told police they buried their mother and sister in the backyard of their home in Lyons.

The brothers – ages 41 and 45 – face potential felony charges for the illegal burying of the bodies. But they were released after 48 hours in custody in cooperation with the Cook County State’s Attorney’s office, Lyons police said.

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