Vince Lewis of the Phoenix Police Department said as dozens of officers sealed off the Extended Stay America hotel. Forensic psychiatrist Steven Pitt worked on a number of high-profile crime cases throughout his life: he consulted on the JonBenét Ramsey case, the infamous unsolved 1996 murder of a child beauty pageant queen, and aided police as they investigated Arizona’s Baseline Killer in 2006. Vince Lewis, a spokesman for the Phoenix Police Department, said witnesses overheard a loud argument followed by gunshots at about 5:30 p.m. Thursday. Then on Friday, paralegals Veleria Sharp, 48, and Laura Anderson, 49, were killed inside a law office in the Phoenix suburb of Scottsdale, and police were able to link their deaths to the Pitt killing. She and her family shared a deep passion for music and their faith.”

The third shooting happened just after midnight Saturday, when a man was found shot to death inside a business center located roughly halfway between Pitt’s office and the law firm. Today investigators say “Our investigation has determined that this double homicide is related to the shooting of Steven Pitt.”

Pitt was a 59 year old father who was found shot to death outside of his Phoenix office last week. The murder of Marshall Levine, who was killed just after midnight Saturday in Scottsdale, Arizona, has now been linked to the same gun used in all four murders, law enforcement officials told ABC News.
The gunman who is suspected of having killed six people – among them, prominent forensic psychologist Steven Pitt – in Arizona, United States, in a five-day time span has been found dead in a Scottsdale hotel. His death is considered a suicide.