(CNN) -- A Michigan man accused of gunning down an unarmed young woman on his front porch took the stand in his own defense Monday. Theodore Wafer, 55, told jurors he feared for his life when loud banging on his front and kitchen doors startled him awake in the early morning hours of November 2, 2013. Wafer is facing charges of second-degree murder and manslaughter for killing 19-year-old Renisha McBride, who prosecutors said was on Wafer's porch in Dearborn Heights seeking help after a car accident. On the stand, Wafer said he thinks of McBride daily. "This poor girl, she had her whole life in front of her," he said, wiping his eyes. He could face life in prison if convicted.
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Theodore Wafer wiped tears on the stand, told jurors he thinks of victim every day
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Wafer said he thought someone was breaking in; "I wasn't going to be a victim in my own house"
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Prosecutors say 19-year-old Renisha McBride was unarmed, looking for help
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The sides spar over "selfies" showing McBride with gun, drugs and cash
@placeholder, who is white, was criminally charged more than two weeks after the killing.
Throughout the case, defense attorneys have fought to admit cell phone "selfies" of @placeholder taken weeks before the incident, that they say point to criminal and aggressive tendencies.