The Latest on a series of suburban Phoenix shooting deaths including a forensic psychiatrist (all times local):

2:05 p.m.

Police in a Phoenix suburb say it's still unclear if the shooting death of a man at an office park is tied to three other slayings, including the killing of a prominent forensic psychiatrist.

Scottsdale Police Sgt. Ben Hoster says officers were called around 12:10 a.m. Saturday about someone being fatally shot inside a business.

Hoster says the call was made by someone who knows the male victim.

He did not identify the victim.

Authorities say the fatal shootings in the last two days of two paralegals at a Scottsdale law firm and Dr. Steven Pitt at his Phoenix-area office are connected.

Hoster said he could not get into the specifics of the connection.

He says police are asking the public to remain vigilant of anything out of the ordinary.

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1:10 p.m.

Authorities say the fatal shootings of two paralegals in a Phoenix suburb are related to the killing of a well-known forensic psychiatrist in Phoenix, and police are investigating if a fourth homicide is related.

Scottsdale police Sgt. Ben Hoster says the killings Friday of 48-year-old Veleria Sharp and 49-year-old Laura Anderson are connected to the shooting death a day earlier of Dr. Steven Pitt.

The women and Pitt were killed outside their Scottsdale offices.

Hoster said a fatal shooting occurred Saturday morning at an office also in Scottsdale appears to be connected. He didn't identify that victim and didn't immediately respond to an inquiry for further information.

The 59-year-old Pitt assisted in the investigations into the 1996 death of JonBenet Ramsey in Colorado and a string of killings in Phoenix in 2006.