This is the fourth in a series.

Memorial Day weekend 1969 saw the brutal murder of two coeds near mile post 31 on the Garden State Parkway. The search for the murderer dragged on for days; then weeks turned into months as the police made little progress and no arrests.

Then on Aug. 7, United Press International told the nation, “Absecon, New Jersey.  State Police said today they have a ‘breakthrough’ in the unsolved knife slayings of two coeds vacationing here Memorial Day.

“ State Police declined to reveal the nature of the new development in the case but said it has no connection with the series of co-ed murders in Michigan, where two New Jersey State troopers have been working with Michigan police.

“The spokesman said the new information would be disclosed Friday at a special news conference at the Absecon State…