Question: What is her motive in killing her sister?
She was hoping that the guy would appear at the funeral again. If you answered this correctly, you think like a psychopath. This was a test by a famous American psychologist used to test if one has the same
mentality as a killer. Many arrested serial killers took part in this test and answered it correctly. If you didn't answer correctly - good for you.
If your friends hit the jackpot, may I suggest that you keep your distance.
I don't know how 'real' this is, but hey, it's a slow day.