I resorted to using a mod (MCCC) to kill a Sim in my game. I'm playing out the lives of some of my ancestors and it was time for Granddaddy Hawkins to leave us. He arrived at the family gathering in a bit of a snit. So, I chose Death by Anger. He grabbed his chest and keeled over. I'm guessing heart-attack. In RL, he made out his final will in early September 1770, died about two to three weeks later on 28 Sept. 1770. Have no clue what took him.
@friendlysimmers, I get where you're at. Back when I was first playing Sims2 (which is where I started my Sims Odyssey) I was experiencing a bit of a phenomenon in my life. Starting with the death of my own father (curiously on the 27 of September and it's his line of ancestors I'm playing), over a period of 2 1/2 years I kept losing people in my own circle. The best friend of my parents passed away on Christmas day that same year and it seemed as if I kept losing people every six weeks to a couple of months afterwards. Had to put down the family dog and when my daughter and I got back, we learned the Godfather to both of my sons had passed away that same day. :O 16 people in all over that time period. I'm still wondering how I kept my head above water.
So, to say I cried when I lost Sims in my game would be an understatement. Which is also why I deleted the game and started them anew. I just couldn't take it.