In general, the outcome of a trial would depend on the specific circumstances of the case, including the laws of the state where the incident occurred.
In some states, individuals have the right to use deadly force in order to protect themselves or their property from imminent harm. This is known as the "castle doctrine" or "stand your ground" law. In states with these laws, it may be easier for Ms. Urbanski to claim self-defense.
However, even in states with these laws, the use of deadly force must be reasonable and proportional to the threat faced. If Ms. Urbanski's actions were found to be excessive, she could still be found guilty of manslaughter.
Ultimately, the case would be decided by a judge and/or a jury based on the evidence presented and the specific laws of the state where the incident occurred.