ABCD

[[A crime scene is surrounded in tape. A large black pool is on the ground, with splashes around it, and some sort of tool. Two people are standing outside the tape.]] Policeman: Looks like a murder-suicide. George: Any interesting mathematical patterns? Policeman: No, George, just two dead bodies and a lot of blood. George: Two... that's the third Fibonacci number! Policeman: Not now, George. When Mathnet shut down, the officers had trouble reintegrating into the regular L.A.P.D. {{Title text: I think I see a Mandelbrot set! No, that's just blood splatters. Golly.}}