What is the timeline for philly mobsters flipping?

-Nick Caramandi (1986)
-Tommy Delgiorno (1986)
-Eugene Milano (1987)
-Larry Merlino (1988)
-Phil Leonetti (1989)

Is that correct? Did Caramandi or Delgiorno flip first?

"I die outside; I die in jail. It don't matter to me," -John Franzese