St. Joseph police arrested 46-year-old Angela Henderson.
She's now charged with second degree murder in the death of Clinton Justice.
Justice was stabbed to death in his apartment on Park Lane back in 2012.
Henderson was originally charged with removing the murder weapon from the scene.
Henderson's arrest comes days after Kim Keith, Jr. pleaded guilty to murder in Justice's death.
He was sentenced to 15 years in prison.
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