I think it would be number 2.
citrine - i dont know where you reside - but there is a children tv presenter (well was) and his fiance died from drugs. He couldnt handle his life without him and killed himself so i do believe that this happens!
Mark Speight! Hug himself via his shoe laces. A very talented artist he was.
You forgot to mention that Mark Speight was arrested for the murder of his wife and then released. He was also charged for supplying overdose of drugs to his wife that caused her death. I agee with the poster who said it doesn't happen that often. Cases like Mark's is an exceptional one and had more to do with guilt than anything else.