By Jennifer McRae

DENVER (CBS4)– The identities of two women stabbed to death early Wednesday morning in Denver have been released. Police have arrested Matthew Madden for the deaths on South Marion near Warren.

(credit: CBS)

READ MORE: Colorado Weather: Fire Danger Ahead Of Next Storm System

One of the victims is Katherine Pivoda, Madden’s estranged wife.

READ MORE: Deadly Hit & Run At I-70 And Pecos Street Under Investigation

The other woman, Jennifer Gelvin, was Pivoda’s friend. Her husband died last month of a heart attack. That couple left behind two children.

Jennifer Gelvin (credit: GoFundMe)

MORE NEWS: Jackknifed Semi That Took Out Guardrail In Icy Conditions Led To I-70 Closure

Madden, 36, was taken into custody at the scene.

Jennifer McRae