I think it's pretty plain John in his Revelation states who was responsible for the the blood of prophets etc,
Mat 23:33 Ye serpents, ye generation of vipers, how can ye escape the damnation of hell?
Mat 23:34 Wherefore, behold, I send unto you prophets, and wise men, and scribes: and some of them ye shall kill and crucify; and some of them shall ye scourge in your synagogues, and persecute them from city to city:
Mat 23:35 That upon you may come all the righteous blood shed upon the earth, from the blood of righteous Abel unto the blood of Zacharias son of Barachias, whom ye slew between the temple and the altar.
Mat 23:36 Verily I say unto you, All these things shall come upon this generation.
Mat 23:37 O Jerusalem, Jerusalem, thou that killest the prophets, and stonest them which are sent unto thee, how often would I have gathered thy children together, even as a hen gathereth her chickens under her wings, and ye would not!
Mat 23:38 Behold, your house is left unto you desolate.
We know that the RC church was not guilty of the blood of the apostles when John tells them to rejoice:
Rev 18:20 Rejoice over her, thou heaven, and ye holy apostles and prophets; for God hath avenged you on her.