Richmond Phillips Trial: Second mistress testifies in murder trial for D.C. cop accused in 2 deaths

(CBS) -- A second reported mistress of Richmond Phillips came forth to testify Wednesday in the murder trial of the married D.C. police officer accused of killing his first mistress and their 11-month-old daughter.

Kimberly Everett testified on the third day of Phillips' trial in Prince George's County Circuit Court, the Washington Post reported. She said she began sleeping with Phillips around February 2010 while she was an administrative assistant for the D.C. police, not knowing he was married.

Phillips, 40, is now facing two counts of first-degree murder and related charges in the May 2011 deaths of 20-year-old Wynetta Wright and their daughter, Jaylin Wright.

Everett testified that she saw a "small caliber" gun strapped to his left ankle when she was naked with him in a hotel room, the Post reported. She said the gun was not his police-issued weapon.

Prosecutors believe that the gun was the same .22-caliber gun Phillps used to fatally shoot Wynetta Wright and then drive her SUV with Jaylin still inside to a nearby apartment complex where he left the baby in the vehicle to die, according the Post. A heat advisory was in effect that day, and temperatures inside the car reached 125 degrees, prosecutors said.

Prosecutors said Phillips committed the crimes because he was facing a paternity lawsuit and didn't want to pay child support for a child he fathered out of wedlock, CBS DC reported. A defense lawyer countered that his client "didn't do this thing" and there wasn't evidence for a conviction.

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Jan. 14, 2013 - D.C. police officer fatally shot mistress, left child to "cook" in car, prosecutors allege