Richard Allen booking photo
This undated booking photo shows Richard Allen, the man charged with killing two teens who disappeared while walking on a trail in Delphi, Ind., on Feb. 13, 2017. (Indiana State Police)
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A high-profile case involving the murder of two teenage girls that has gone unsolved for five years could have a major development on Monday.
That was revealed by a prosecutor during a Tuesday morning hearing for Delphi suspect Richard Allen.
That information was unveiled in redacted court documents released Tuesday afternoon that shed significant new details on the case.Â
