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Man charged with killing his step-mother and her neighbor in Rosedale

Posted: 3:07 PM, Jun 27, 2018
Updated: 2018-06-28 13:40:55-04

A man has been charged in the deaths of his step-mother and another Rosedale woman, Baltimore County Police said.

Ryan Michael McGuire, of no permanent address, was charged with two counts of first-degree murder and two counts of second-degree murder in the deaths of Cindy Berinda Testerman and Judy Elizabeth Slezbak.

On June 24, police were called to a home in the 7900 block of Roseland Avenue around 8 p.m. when Testerman's son, Robert Testerman, found his mother on the kitchen floor suffering from wounds to her upper body. The 62-year-old woman was pronounced dead at the scene, and, after an examination by the Office of the Chief Medical Examiner, it was determined she was killed by an edged weapon, like a knife. 

According to charging documents, detectives noticed the house looked like it had been ransacked and jewelry appeared to be missing. Robert Testerman said his mother lived alone, but that she had a door bell security camera.

Using the footage from that camera, detectives saw a man, later identified as McGuire, ring the bell at 9:50 a.m. on June 23. The door was answered and McGuire can be heard saying, "holla at her later," according to charging documents. 

At 11:07 a.m. he returned, asking "how you been?" before being let into the house. At 12:18 p.m. He is seen exiting the house and entering the house across the street, where Slezbak, McGuire's step-mother, lived. At 12:35 p.m. he was seen exiting Slezbak's house and getting into Testerman's car, then driving away. McGuire had changed clothes as well. 

Detectives collected more security footage from neighbors, who said they had seen the same events and recognized McGuire as Slezbak's step-son, the charging documents say. Neighbors were under the impression Slezbak was in a medical facility and not staying at her house. 

Police identified McGuire based on comparing the footage to existing arrest photos and tattoos. Detectives also learned that Slebzak's car, a 2013 black Honda Accord, was missing as well.

On June 26, detectives found the Honda in the parking lot of the Deluxe Motel, 6401 Pulaski Highway, in Baltimore, the charging documents say. Detectives waited and saw McGuire staying in a room rented under the name of Jessica Chamberlain, McGuire's girlfriend. When he was seen exiting the room and heading towards the Honda, he was arrested.

During the arrest, detectives searched the motel room and found items such as mail and financial documents in Slezbak's name, Testerman's checkbook, several pairs of new shows, and a large amount of women's jewelry. In the car's trunk they found a large sheet and a mattress cover.

McGuire was taken to police headquarters for an interview, at which point he was read his Miranda rights and waived them, agreeing to participate in questioning without an attorney. 

McGuire admitted to killing Testerman because she was "asking too many questions," about Slezbak's disappearance, charging documents say, taking several items from the home as well. McGuire said that Slezbak was dead, admitting to plotting her murder for several months. He said he killed her about two to three weeks prior and hid her body, which was later discovered in at Slezbak's Roseland Avenue home in a trunk, police said.

Police believe McGuire stole the possessions and used the victims' cars to drive around and sell stolen items so he could buy narcotics.

McGuire is being held without bail at Baltimore County Detention Center pending his bail review hearing.