Ok I want to play! Here are my five questions for the first one about the man in the field...
1 - There is only the man and the bag in the field?
2 - Is there some poison or animal (like a snake, scorpion, killer bees) in the bag that could have killed him?
3 - Was there some stormy weather like lightning that could have killed him?
4 - As he didn't walk to the field was he killed someplace else and then dragged there?
5 - Was he carried into the field with the bag in his hand as you said he was carrying the bag but didn't walk into the field?
Interesting riddle