I put Glaser's widow and child in the scene in case the players wanted to use her to provide a distraction.
Clearly, it would be immoral for the player characters to, say, push Mrs. Glaser into Poncela so that the ghost of her husband would be unlikely to risk a shot against his killer. Using the widow in such a way would be the action of a mercenary, not a hero, and I want my Cast Members to be heroes.
However, it would have been perfectly reasonable for a player to spend a Drama Point for a Plot Twist for something like this:
Poncela finally emerges from the prison. He looks over the crowd and sees Janice Glaser, whom he recognizes as the widow of the policeman he killed. Poncela smiles at her. Although his hands are chained together in front of him, he points at Janice, makes a shooting motion with his hand, and winks at her. Janice, enraged, lunges for Poncela. The police weren't expecting this, and Janice reaches Poncela and begins clawing at him and tearing at his hair. The policemen on the roof above relax their grips on their triggers.
That would have bought the Cast Members some time without making them seem less heroic. This is also an excellent example of just how powerful a Plot Twist can be.
Alas, none of the players thought of doing this -- with tragic results, as you'll soon see.