A GUNMAN shot five people dead and critically injured one at an Arizona residence before driving to California and killing himself, Lake Havasu City, Arizona police said.
Late last night local time, Brian Diez, 26, shot six people at close range in Lake Havasu City - on the border of Arizona and California - before kidnapping his two children, driving three hours to a relative's home, and taking his own life.

"This is the worst shooting in the history of Lake Havasu City," Lieutenant Richie Sloma told local news website havasunews.com

The four found deceased at the scene were 23-year-old Deborah Langstaff, 24-year-old Primo Verdone, 42-year-old Russell Nyland, and 20-year-old Ashley Nyland.

20-year-old Brock Kelson and 44-year-old Deborah Nyland were transported to Havasu Regional Medical Centre. Kelson succumbed to his injuries and died at the hospital. Nyland - who called 911 after the shooting - was transported to Sunrise Medical Centre in Las Vegas, Nevada.

An amber alert was issued for 13-month old Cole Diez and four-year-old Kaia Diez -- the two children the shooter took with him when he fled the scene. According to the police report, Diez fathered the children with Deborah Langstaff during a long-term relationship, but the couple was estranged at the time of the incident.

At 3.22 am, local time on Saturday, police learned that Diez's vehicle was located three hours away from the crime scene, in front of a house in Rancho Cucamonga, California. Around the same time, San Bernardino County Sheriff Department deputies were being dispatched to the same residence on a suicide report.

Diez was found dead of a self-inflicted gunshot wound, and his children were found safe with relatives inside the home.

The motive for the shooting spree was still being investigated.

http://www.news.com.au/breaking-news/arizona-murder-suicide-leaves-6-dead/story-e6frfku0-1225911708513