In the aftermath of Catherine's suicide, Detective John Cardinal outwardly accepts the evidence that she took her own life, but when he starts to receive taunting greeting cards blaming him for her death, he begins to question the suicide.
But 9-1-1 could get another spinoff on ABC in a new location, with Las Vegas among potential cities rumored to follow Los Angeles (9-1-1) and Austin (9-1-1: Lone Star).
