(WXYZ) - Action News has learned that there is a major new development in the Oakland County Child Killer case.
A grand jury has been seated in Oakland County on the decades-old case.
The grand jury will listen to evidence presented by investigators, and hear testimony from witnesses.
Four children were abducted and murdered in Oakland County between 1976 and 1977.
Under the law, grand jury proceedings are supposed to be secret.
Action News has also learned a new major task force has been formed to pursue leads in the case.
No one from the Child Killer Task Force has returned phone calls to comment on the grand jury.