LaFortier irrationally believing Harry is the mole causing him to delay identification of the mole which leads to his death due to the mole's machinations only to wind up having his case solved by Harry seems fitting.
And, that summary basically proves that LaFortier was an obnoxious idiot who was replaced with a more obnoxious and bigger idiot.
On a par with Madeline, he sits at the kiddie table.
What is frustrating is that it seems that there are as many loose ends created as are closed. Although the reveal of Nemesis and ascension of Molly to WL, birth of Bonnie in SG, closed some loose ends.