Expert provides insight into Phoenix serial killer case

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Dr. Steven Pitt is a forensic psychiatrist, who works in Scottsdale, AZ. Dr. Steven Pitt is a forensic psychiatrist, who works in Scottsdale, AZ.
Police have connected eight shootings in which seven people were killed and two more wounded. (Source: Bing) Police have connected eight shootings in which seven people were killed and two more wounded. (Source: Bing)
Suspect sketch (Source: Phoenix Police Department) Suspect sketch (Source: Phoenix Police Department)
MESA, AZ (3TV/CBS 5) -

Dr. Steven Pitt is a forensic psychiatrist who has worked on a number of high-profile cases, including the Baseline Killer and JonBenet Ramsey investigations.

On Tuesday, Pitt was asked to provide some insight into Phoenix's latest serial killer case.

"Each subsequent offense becomes more intoxicating for the offender, and ultimately it's that intoxication that leads them to become sloppy," Pitt said. "Sloppiness leads them to leave physical evidence; physical evidence leads to apprehension and arrest."

So far, at least seven shooting deaths have been linked to the same shooter or shooters in Phoenix, most of them in the West Valley, since April. Two people were wounded in separate shootings in March.

READ: Police: Serial killer behind 8 shootings, 7 deaths in Phoenix

PHOTOS: The victims

SPECIAL SECTION: Police hunting for serial killer operating in Phoenix

Police believe that in each incident the suspect arrived and departed in a vehicle, but that vehicle description has varied from a light-colored sedan to a dark-colored sedan.

Police said a handgun was used during the crimes and the suspect had no known prior contact with the victims.

All of the incidents occurred in residential neighborhoods, many of them in the Maryvale area.

Google map of shootings | Click/tap here to text map URL

The case is just now receiving high-profile media attention, which Pitt believes is essential to catching the killer.

"At the end of the day, this individual, no matter how deranged or twisted they may be, the reality is they are someone's friend, family member, someone's brother," Pitt said. "Somebody knows something."

Police are counting on that.

"Someone out there knows who did this," Phoenix Police Chief Joseph Yahner said. "We need our community to call us or Silent Witness and help us solve these cases, bring justice to these families and victims, and prevent more violence from occurring."  

A reward of up to $30,000 is being offered for information that leads to an arrest.

If you have any information about any one of these cases, please call Silent Witness at either 480-WITNESS (948-6377) or 1-800-343-TIPS (8477). Spanish speakers may call 480-TESTIGO (837-8446). (Click or tap phone number to call from this story on your mobile device.) You can remain anonymous.

Copyright 2016 KPHO/KTVK (KPHO Broadcasting Corporation). All rights reserved.


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