When Angela was brought to the hospital after being shot in the chest by Tommy Egan, Paz was informed and she rushed to the hospital. She was the only one allowed to see Angela, who was soon pronounced death. A distraught Paz came across James St. Patrick in the waiting area and called him a murderer for killing his sister, believing he had been the one to shoot her. She broke down in his arms as he tried to tell her the truth.
As she was mourning over Angela's body, Cooper Saxe came in to request consent for an autopsy. He stated it would provide them with crucial evidence they would need to hold James accountable, but Paz refused to let them mutilate her sister's body after the entire office had turned their backs on her. Later, James came to see Paz at her apartment to swear he hadn't done it and offered to cover the funeral expenses, knowing she would have a hard time doing so. Furious over his audacity, Paz refused his offer and then went to the morgue, where she consented to the autopsy in order to bring James down. When she discovered James did not shoot Angela but is running for president, she took matters into her own hands and went to Jacob Warner and the FBI to catch him after failing to convince Tasha to snitch on James. Tasha however refuses as this can tear her kids apart especially since if James got caught, he would expose them for their own crimes. Furious, Paz decided to kill James herself. This however backfires and when she goes to the FBI, she had no evidence that could implicate James but instead her own sister instead which costed her family Angela's pension. Unwilling to give up, she goes to Tommy to get him to kill James, but Tommy refuses claiming that Angela wasn't innocent. She finally gives up when Junior attempts to go and kill James himself after waking up from being asleep from her crying and when Ramona doesn't want to hear anything about the bad side of James.
Later, Paz discovered from Tasha that Tommy was the one who killed Angela and she rushed to his apartment to confront him, but he already relocated to California, as she breaks down at her sister's murderer escaping.