Continuity mistake: At the start of the episode, Zach picks up some gravel from beneath the lamppost and throws it at Julie's window. But when he leaves Susan the flowers, you can see that the gravel has disappeared.
Desperate Housewives (2004)
1 continuity mistake in Fear No More - chronological order
Look Into Their Eyes and You See What They Know - S5-E19
Other mistake: In an earlier episode where Edie and Susan are driving Martha Huber's ashes to the lake to be spread, Edie gets a flat tire and Susan changes it. In this episode, all the girls are driving with Edie's ashes and they get a flat tire. Susan asks "Does anyone know how to change a flat tire?" Did she forget how?
Gabrielle: I feel a wave of morning sickness coming on, and I want to be standing on your mother's grave when it hits.
Trivia: Across Season 4: Two Lois Lanes appear together in this season: Teri Hatcher played Lois Lane in The Adventures of Lois and Clark and Dana Delaney voiced Lois Lane in Superman: The Animated Series and its follow-ups.
More questions & answers from Desperate Housewives
Answer: He was investigating the lead not the case.