Police in Phoenix say a man has been arrested on suspicion of manslaughter and aggravated assault in connection with a shooting.
They say 45-year-old Michael David Napier was detained after the shooting early Wednesday.Police say 29-year-old Michael Green died of his injuries while a 32-year-old woman had a non-life threatening injury.
The name of the woman hasn't been released yet.
Police say Green and the woman have a child in common, but didn't disclose details.
The two were reportedly arguing in a parking lot when police say Napier became involved and allegedly shot both victims.
A motive for the shooting hasn't been disclosed, but police say investigators have determined that Napier was living with Green's mother.