Killer's Obsessed

■ every serial killer have their own styles to kill their victims and some of them unique. 
■ when come to amputation, mutilation or dismemberment of the body, the using saw as a weapon is always stick to their mind.
■ hundreds different of saws in the market such as ;
● crosscut saw ● ripsaws ● pruning saws ● hacksaws ● keyhole saws ● kitchen and meat saws ● ryoba saws ● gigli and rod saws ● bone and metacarpal saws 
■ some are those :-
▶ run on muscle
▶ powered by eletricity or gas
▶ move with reciprocating action
▶ move with continuesly action
▶ move back and forth
▶ use rotating blade
■ saws are created to cut different types of materials and to do different things as they cut. 
■ hand power saws not depend on muscle so it leaves more consistent cuts and more evenly patterned for the stracthes and the striae.
■ often leave with deeper false starts.
■ its because isn't required the human energy and saw is heavier, the person who working with it putting more pressure to the object they cut so it leave larger breakaway spurs when the bone finally reach.
■ false starts is a form of kerf when the blade enters the bone.
■ when saws cut deeper and more deeper to the bone - the initial corner will built wall - kerf develop a distinct floor like a trench.
■ if blade pulled out before going cut through the bone - kerf that left known as false start.
■ from then we know how killer made false start because its contain all information about the types of blade. 
■ determined by the width of the blade and the set of its teeth.
■ have the characteristics shape in cross-section.

 Crosscut saw

Pruning saw

Hacksaw

Keyhole saw

■ some explanations from forensic science about how to trace blood print on glove of the killer :-
▶ bloods know its own protein or antigens, so if it recognizes foreigners, antigent that dont belong to, it tries to destroy them with antibodies.
▶ some antibodies blow up foreign antigens, others clump them together. 
▶ this clumping called an agglutination reaction or in malay reaksi pelekatan. 
▶ antiserum created in animal like rabbit or chicken by injecting with the blood of the other species.
▶ animal blood recognizes the invaders and produces antibodies to protect itself. 
▶ injecting animal with human blood it creates human antiserum. 
▶ same process if inject with goat blood it produces goat antiserum so too horse blood produces horse antiserum.
▶ human antiserum creates agglutination reaction when mixed with human blood.

From time to time the human species produces predators that feed on those around them. They are not the species. They are mutation of the species.

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