What, that a villain attacked the family member of a superhero as a means of gaining leverage over said superhero? It's like, the third rule of villainy, preceded only by robbing banks and attacking the hero.
Though were I the judge, I'd take into consideration who fought back, and who went down like a little bitch. True, Donna's work as a hero might endanger Robert's life, but she's one of the few people who can also protect him.