@Bhanu- Unahb,
Well, you answered your own question. You simply . . . get rid of them. That's not really the hard part though, is it? The hard part is getting rid of the body. If I were you, I would tie the body to the undercarriage of your neighbor's car while it's parked at the local bar some night. Let them try talking their way out of that one. And if it's a neighbor who has ever wronged you in any way, you'll be killing two birds with one stone so to speak. But maybe you've been so lucky throughout your life that you have no enemy neighbors who have wronged you enough to warrant doing that do them. In that case, you might want to consider plan B.
For plan B you'll need a small boat or canoe with an electric trolling motor installed. You will also need to weld a handgun to the inside of the canoe in such a way that it is pointing at the bottom of the canoe. Then weld, or chain, a good-sized hunk of steel to the bottom of the boat. Next, take an old fashioned, wind-up alarm clock and weld it to the inside of the boat just above the pistol. Then connect one end of a length of fishing line to the wind-up key of the alarm clock, and the other end to the trigger of the gun. As the wind-up key slowly unwinds, it will take up the slack in the fishing line and eventually pull the trigger, which will put a hole in the canoe and send it to the bottom of a lake or the ocean. The amount of slack in the line will determine how far the canoe will go before being sunk by the bullet.
Now all you have to do is secure the body inside the canoe with a length of chain, load the canoe onto your pick up, and head for the ocean or lake after dark. And don't go over the speed limit, and make sure your brake-lights and all that stuff is working; you really don't want to **** up at this point, or you'll have a story to tell your grandchildren alright, but only after you get out of prison, and the story will not reflect kindly on your character. I don't think I have to explain the rest. Oh, and bring another handgun in case of unwanted witnesses; one never knows. And if that does happen, don't sweat it. A canoe will easily hold two bodies.
And you'll want to choose a deep lake. Might I suggest one of the Great Lakes? They're deep, and there's lots of hotels situated along the shore line in case you want to get a room and a bottle of liquor and drink yourself to sleep. If it's your first time, choose something that's 100 proof. My first time, I chose 140 proof rum. But don't worry, after the first couple of times, wine (13%) will do the trick.