Susan Johnson was the sister of Bobby Johnson. When Bobby yawned, she yawned too, due to the contagious nature of yawning. Sinestro then shows up at their doorstep, and tells them he can cure both of them of their "condition" if they each give him five bucks. They then do so, and then he kills them by blasting them with his Qwardian Power Ring, which instantly vaporizes them.