How is killing an innocent person under threat to oneself assessed?

Azimah and Rukhsah: Original Rulings, Excuses, and Two Forms of Concession

• Severe coercion removes the prohibition from every forbidden act
• Unlawful homicide is a routine illustration of concession by permissibility
• Unlawful killing does not become generally permissible through coercion
• Taking another life under coercion is legally identical to property damage