No it is not
no
Either the developer choose not to developed Red Dead Redemption on the Wii or it wasn't possible to develop the game on that platform.
It is possible to get redemption if you work in a medical field and committed murder. However, it may be difficult to get trust back, but by being completely open and honest about your past, it is possible.
Yes it is possible by leaving the area and then returning.
It's possible. Of course, it is also possible that this man will truly love you too, and will also break up with you in due course. Such things can be hard to predict.
It is not possible to forget a truly close friend unless you lose your memories.
It should be
Feel free to do whatever you like to do in the game (except cheating of course). You having truly completed Red Dead Redemption until you have achieved 100% game completion, unlocked all trophies/achievements and played twice with good and bad honour.
A wrongly imprisoned man ( freedom is taken away ) buys back, or " redeems" his life by escaping and exacting rightful punishment to those who had truly done wrong.
Yes, anything is possible if you truly believe.
No. It is scripted into the game that John Marston dies and you continue to play as his son, Jack.