Whitney was not the only character whose fate was met with demise. "Suspect" became the show's first "cracking the mystery" episode, which revolved with the attempted murder of Lionel Luthor by a mysterious assailant; it was influenced by the Japanese film "Rashomon", just like season one's episode "Zero", which is told from different people's perspective of the same event. It was originally decided that Lionel's assistant, Dominic Santori, was going to be the person who attempted to kill Lionel, but ultimately it was decided that Sheriff Ethan would be villain of the episode. Although Jonathan Kent was also a suspect, it was clear to at least Greg Beeman that they could not pin the crime on a series regular, so they decided to try to surprise the audience by making it Ethan. Mitchell Kosterman, who plays Sheriff Ethan, was a little distraught over his character's fate, having grown comfortable with his place on the show. The original ending of the episode featured Ethan taking a nurse hostage, which Kosterman felt was out of character; subsequently, the final version had Ethan giving up the second it is revealed that he was caught. To Kosterman, this ending allows the character to stay sympathetic, by showing that he was "pushed to a bad place", because Kosterman feels, "that whole dynamic of good people being pushed to do the wrong thing by bad people like Lionel Luthor is a pervading theme in the whole show".