History
David Kane was a pirate like his father, Jesse Kane, and at some point in time, he learned about Aquaman and wanted to encounter him. Their gang took over a submarine, and as they were celebrating their apparent victory, Jesse presented him with a special knife; initially, he scoffed at it, calling it a piece of junk, and the love of "[his father's] life"; but when Jesse told him about how it belonged to his grandfather, who fought in World War II as one of the Navy's first "frogmen" (code-named "Manta" for his stealthiness), he immediately changed his mind, and accepted the blade. Suddenly, they were interrupted by Arthur Curry, known as Aquaman. David proclaimed that he expected to eventually face the Aquaman but was quickly defeated the Atlantean. read more
