
Blood reacting with 30% hydrogen peroxide. When they come into contact with one another, the hydrogen peroxide turn into oxygen and water. The bubbles are the oxygen being released as a result of the combination.

Blood reacting with 30% hydrogen peroxide. When they come into contact with one another, the hydrogen peroxide turn into oxygen and water. The bubbles are the oxygen being released as a result of the combination.

Death is usually caused by one of three ways:
- Coma (failure of brain)
- Syncope (failure of heart)
- Asphyxia (failure of lungs)
Coma
Usually caused on one of four ways:
- Depressed fracture of the skull, compressing the brain. In homicide, this is usually caused by a direct head injury by bludgeoning by a blunt implement, or in car accidents
- Some poisons
- Some narcotic and hypnotic drugs
- Medical conditions such as cerebral haemorrhage and brain tumour. Also some diseases poison the brain as a by-product
Syncope
- Natural heart failure caused by several degenerative diseases. Can be exacerbated by shock
- Some poisons
- Direct injury to heart
Asphyxia
Anoxia means “lack of oxygen”. Is it the main cause of death in homicide. There are four main types.
- Anoxic Anoxia (Asphyxia) This also also called “manual anoxia”. It is caused by:
- Breathing air that doesn’t have enough oxygen
- Obstruction of oxygen supply by air passages being blocked or swollen
- Pressure on chest or abdomen preventing breathing
- Paralysis of repiratory system by electric shock or some poisons.
- Anaemic Anoxia
- Insuffient supply of oxygen to the body due to blood loss or obstruction of the arteries. This is what happens when you bleed to death
- Obstruction of the supply of oxygen in the blood, as in carbon monoxide poisoning
- Histotoxic Anoxia Some poisons, eg cyanide, paralyze the body tissues preventing them from using oxygen
- Stagnant Anoxia Where the blood circulation is stopped, such as with a shock, heart failure or an embolism

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Photography is not permitted in British courts of law, but one anonymous journalist couldn’t resist the opportunity to snap this infamous picture at the trial of the century. Standing in the dock are Ian Brady and Myra Hindley, better known as the Moors Murderers. The pair killed 5 children in a sadistic spree and buried their tiny bodies on the moorland. In court, they would whisper to each other, mocking the families’ grief and they would pass notes on how they would murder their next victim.