Calling All Cars - Multiple Murders

It was a clear, crisp day in November. Four miles north of the town of San Fernando, California, in a small heavily wooden glen, R.M. Frank and his wife finish a picnic lunch, and are getting ready to do some rabbit hunting. R.M. says "Well,  I made it and that's about all. I couldn't eat another bite of food, if my life depended on it". Mrs. Frank says "Oh, you couldn't, huh?" R.M. says "Nope. not so much as one infinitesimal crumb could I manage". Mrs. Frank says "Not even if I reached into a bag like this and pulled out something like this?" He says "Apple pie?" She says "Baked this very morning by none other than yours truly. Of course, if you really can't eat a piece there's no use in cutting it". He says "Now, wait, I don't want to seem stubborn about this. You went to a lot of trouble making it and all. Well, maybe I might just, sort of, eat a little piece, you know?". She says "I thought so". He says "What do you mean, you thought so? Sounds as though I were in a habit of rescinding statements I make". While handing him a piece of pie, Mrs. Frank says "Here. Stop sounding like a novel, and work on this". R.M. says "Was I sounding like a novel?" She says "You were". He takes a bite and says "That's the best pie in the whole US". She says "Thank you". He says "Wait a minute, I know what I need to complete the picture, some ice cold water from that little stream over there, and that's just what I'm going to get. Now hold everything until I get back". She says "Careful a wild animal doesn't get you". He says "Don't worry, the biggest thing out here is a red ant". As he nears the stream, he suddenly stops in his tracks. She says "What's the matter? Did one of those red ants get you?" He says "Stay over there, honey". As he hurries back toward her, she asks "What is it?" He says "It's something I don't want you to see. Come on let's get this stuff packed up as fast as we can. I've got to get to the phone". She says "I wish you'd tell me what it is. I've never seen you look that way before". He says "It's a dead body. A man, I think. Lets get out of here. I've got to phone the authorities".