Free Puzzle Solution

This site designed by Leithauser Research shareware, which makes programs to lock Internet acess (like Internet Password Lock) or block Web sites (like Web Site Zapper ). Both of these programs can control Web access. There is also a program to prevent tampering with the computer clock. There is also  Date Calculator, which will calculate the number of days between any two dates, optionally only counting certain days of the week, such as Monday through Friday. It can also calculate the date a certain number of days before or after a given date, again optionally only counting certain user selected days of the week.

Fred Graig is 5 feet 3 inches tall. The suspect who owns a purple car is 5 feet 3 inches tall. Therefore, Fred Graig owns a purple car. The murderer owns a yellow car, so Fred Graig is not the murderer.
The suspect who was wearing an orange shirt owns a black car. The suspect who is 5 feet tall was wearing an orange shirt. The suspect who is 5 feet tall has a wife named Betty. Therefore, one suspect was wearing an orange shirt, owns a black car, is 5 feet tall, and has a wife named Betty. But Marty Fox was wearing a yellow shirt, David Morrison has a wife named Mary, Jim Jones is 5 feet 6 inches tall, and Fred Graig owns a purple car. Therefore, the only suspect who could be this suspect is Bob Martin. Since Bob Martin owns a black car, he is not the murderer.
The suspect who is 6 feet tall was wearing a red shirt. The suspect who was wearing a red shirt owns a yellow car. Therefore, one suspect is 6 feet tall, was wearing a red shirt, and owns a yellow car. Marty Fox was wearing a yellow shirt, Jim Jones is 5 feet 6 inches tall, Fred Graig owns a purple car, and Bob Martin owns a black car. Therefore, that one suspect is David Morrison. Since the murderer owns a yellow car and David Morrison owns a yellow car, he is the murderer.

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