Pretty Little Liars: Maya St. Germain and Garrett Reynolds
When: Maya’s (Bianca Lawson) body turns up in Season 2, Episode 25, “UnmAsked.”
How: Although the truth doesn’t come to light immediately, it turns out Maya was killed by her stalker ex from True North, Lyndon James, who moved to Rosewood and pretended to be Maya’s cousin, Nate St. Germain. Pretty sick and pretty twisted.
When: Season 3, Episode 13, “This Is a Dark Ride” (the Halloween episode)
How: We don’t yet know the how of it, but Garrett’s (Yani Gellman) body turns up in a crude quasi-coffin — in which a living, breathing, drugged Aria (Lucy Hale) is also placed.