Theophylact of Ohrid
Catena Aurea · Markusevangelium 6
And king Herod heard of him; (for his name was spread abroad:) and he said, That John the Baptist was risen from the dead, and therefore mighty works do shew forth themselves in him. Others said, That it is Elias. And others said, That it is a prophet, or as one of the prophets. But when Herod heard thereof, he said, It is John, whom I beheaded: he is risen from the dead.
Or else, Herod, knowing that he without a cause had slain John, who was a just man, thought that he had risen from the dead, and had received through his resurrection the power of working miracles.