Peoria murder, suicide suspect dies in hospital

Posted: Updated:
Peoria police scene after shooting near 88th Avenue. [Source: 3TV/CBS5] Peoria police scene after shooting near 88th Avenue. [Source: 3TV/CBS5]
PEORIA, AZ (3TV/CBS 5) -

Police say the 53-year-old man who shot his wife then himself during a domestic dispute a week ago has died.

Peoria Police Department spokesman Officer Brandon Sheffert said David Mattison, 53, died at a local hospital Friday morning.

Sheffert said Mattison shot his estranged wife, 49-year-old Tammy Mattison, on March 17 at the Country Village apartments near 88th Avenue and Peoria Avenue. She died a short time later.

[RELATED: Police ID woman killed in suspected murder, suicide]

Both lived in the apartment complex, but in separate apartments since undergoing relationship issues, said Sheffert.

Their 12-year-old daughter was nearby and heard the shooting.  She found her injured mother and called police to the scene.

"We continue to provide support and resources to the 12-year-old child who called 911 and who lost both her mother and father in this horrific incident," said Sheffert. 

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