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Man suspected of fatally stabbing his estranged wife, her friend

Matthew Madden, 36, was arrested on suspicion of first-degree murder after the death of his estranged wife and her friend, according to Denver Police Department.

DENVER — The Denver Police Department (DPD) said officers arrested a man after a stabbing that left his estranged wife and her friend dead on Wednesday morning.

Officers responded around 12:10 a.m. to the 2200 block of South Marion Street for a domestic violence incident. That is near East Iliff Avenue and South Downing Street in Denver.

Officers discovered women who were pronounced dead at the scene from suspected stab wounds. Two sleeping children were also located inside the home.

The women were identified Friday as Katherine Pivoda, 33 – who was Madden's estranged wife, and Jennifer Gelvin, 49.

According to a Probable Cause (PC) statement for the suspect's arrest, officers discovered 36-year-old Matthew Madden, who was bloody and holding a knife. 

Credit: Denver Police

Officers tased Madden after he refused to drop the knife, and the (PC) statement says he was taken to the hospital in critical condition for treatment on self-inflicted injuries suffered before his arrest including apparent lacerations on his neck, chest and arms.

Multiple neighbors reported hearing an argument from their home and someone yelling "get out" repeatedly before the commotion stopped, according to the PC statement.

A witness also reported that Madden had moved out around July.

RELATED: Denver hospital sees increase in trauma cases related to violent crime

Anyone with information about this stabbing is asked to call Crime Stoppers at 720-913-7867 or visit metrodenvercrimestoppers.com. Tipsters can remain anonymous and may be eligible for a reward of up to $2,000. 

Metro Denver Crime Stoppers works by assigning a code to people who anonymously submit a tip. Information is shared with law enforcement, and Crime Stoppers is notified at the conclusion of the investigation. 

From there, an awards committee reviews the information provided and, if the information leads to an arrest, the tipster will be notified. Rewards can be collected using the code numbers received when the tip was originally submitted. 

RELATED: Man killed in stabbing at Leadville home

> More information about Metro Denver Crime Stoppers can be found here. 

> Additional Crime Stoppers bulletins can be found here. 

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