Details are unknown.
Some claim B was part of urban legends, told to young childes as tales of woe. It is said the B is a 5th or even older vampire. Some say B is just a gardener. Some say Manhattan was bought by the same guy who thought fizzy water with sugar would sell or that Thomas Alva should in fact try and fiddle with that phonograph gizmo, that young Jesus of Nazareth was indeed a heathen, or that Gilgamesh is in fact ready to be a king.
They say a lot, these people, don't they.