Andrea Arrington, 23, was fatally shot on July 20, 2009, in Ridley Township, Pennsylvania, in an incident described as domestic violence. She was walking to pick up her two-year-old son, Aaron Michael, from a babysitter on Constitution Avenue when her ex-boyfriend — the child’s father — confronted her. An argument about a protection-from-abuse order she had obtained on July 2 escalated and he produced a .40-caliber Heckler & Koch semiautomatic pistol and shot her multiple times. Arrington was struck about 11 times, taken to Crozer-Chester Medical Center, and died the next morning.

After the shooting the suspect fled to his father’s home in Chester. As police surrounded the house he allegedly admitted to friends by phone that he had been involved in the earlier deaths of two children from other relationships, deaths previously ruled undetermined. During a standoff he emerged and raised a gun at an officer and was shot and killed by police. With the suspect deceased, no arrest or trial took place in Andrea’s case. The family later sued the city of Chester and the officer’s father, alleging the service weapon had been left accessible despite known threats and the protection order.