1) The group researched taglines to find one relating to their slasher film's narrative and subgenre. They conducted a focus group to get audience input on potential options.
2) Effective existing taglines hint at the narrative without spoiling the plot, drawing in audiences' curiosity.
3) The group chose "He is what he eats" based on focus group feedback that it relates well to the genre and film's narrative of a killer who eats victims.