However, Clark and Pete Ross launch their own investigation, uncovering a complex web of alternative motives documented on IMDb :
In a betrayal of long-standing trust, the true culprit is revealed to be Sheriff Ethan Miller . A recurring friend of the Kents, Ethan’s descent from a "good cop" to a criminal—driven by Lionel's blackmail—serves as a grim warning of how Lionel corrupts everyone he touches. Critical Reception and Themes
Unlike many episodes where villains are created by meteor rocks, Ethan is a purely human antagonist. This highlights a central theme of the season: the moral "slippery slope" that comes from interacting with the Luthors. [S2E13] Suspect
is a standout "whodunit" episode that shifts the series' typical "Freak of the Week" formula toward a high-stakes noir thriller. Airing originally in 2003, it centers on the attempted murder of Lionel Luthor, an event that forces Clark Kent to balance his secret abilities with grounded detective work. The Mystery: A Web of Motives
Struggling under his father's thumb, Lex is a prime suspect due to Lionel’s recent maneuvers to regain control of LexCorp. However, Clark and Pete Ross launch their own
The mystery moves quickly, utilizing Clark’s burgeoning investigative skills rather than just his strength.
According to viewer discussions , this episode cleverly uses Lionel’s blindness as a plot device, allowing Clark to use his powers in front of him without being exposed. This highlights a central theme of the season:
The episode is noted for testing the Kent marriage, as Jonathan’s vulnerability and lies about his drinking create rare friction between him and Martha.