How did the supreme court rule the dc v heller case?

This was a landmark case related to the possession of firearms.

The Supreme Court ruled that the Second Amendment protects individual's right to possess a firearm, if unconnected with service in a militia, and for traditionally lawful purposes, such as self defense or defense of others. It also ruled that the DC Handgun Ban and requirement for rifles and shotgun to be kept unloaded and disassembled or bound by a trigger lock violated the guarantee granted by the Second Amendment.

where is the subject? hahahaha