Question:  Park Dietz is a forensic psychiatrist who consulted or testified in the criminal case of an American contract killer who was associated with members of what Newark family?
Sentence (from "Richard Kuklinski"): Richard Leonard Kuklinski (April 11, 1935 – March 5, 2006) was an American contract killer and serial killer who was convicted of murdering five people, though he likely killed at least several dozen more.
Relevant evidence: Yes