UPDATE – Wed. 12:15 p.m.: Iowa ambush suspect had history of police altercations

DES MOINES, Iowa (AP) — Police say the suspect in the killings of two Des Moines-area police officers is in custody.

Des Moines police Sgt. Paul Parizek says Scott Michael Greene was taken into custody without incident this morning in Dallas County, just west of Des Moines.

Greene is suspected in the killing of a Des Moines police officer and an Urbandale police officer earlier today.

Patricia Greene, the 66-year-old mother of the suspect, also was arrested two weeks ago accused of assaulting her son.

A criminal complaint shows Patricia Greene yelled at her son, Scott Michael Greene, to remove his daughter’s service dog from her house Oct. 17.

The complaint says Scott Greene was wearing his deceased father’s dog tags and that his mother tried to tear them from around his neck. Greene grabbed his mother’s hand and she hit and scratched his face.

Scott Greene showed an officer cell phone video of the confrontation.

His mother was released on a $1,000 cash bond and a judge ordered that she have no contact with her son. She is due in court on the charge later this month.

The complaint doesn’t say why Greene’s daughter has a service dog.

Scott Michael Greene has a record of confrontation with police and others.

Iowa court records show he was jailed and charged with interference with official acts after resisting Urbandale police officers trying to pat him down for a weapon on April 10, 2014. A complaint signed by an Urbandale officer says Greene resisted verbal commands, was hostile and combative. It says he was known to be armed. He entered a guilty plea and was fined.

Two days later Urbandale police were called to answer a complaint of harassment at the apartment complex where Greene lived. The complaint says he threatened to kill another man during a confrontation in the parking lot. He was charged with harassment, pleaded guilty and received a suspended jail sentence and a year of probation.

Records show he completed a court-ordered substance abuse and psychological evaluation.

Des Moines police say Greene is a suspect in the shootings early Wednesday in Des Moines and the suburb of Urbandale.