Zawahiri was associated with a faction of the Egyptian Islamic Jihad known as the Vanguards of Conquest.

"Results": [
    {
        "TypeName": "PER",
        "Text": "Zawahiri",
        "Start": 0,
        "End": 8
    },
    {
        "TypeName": "ORG",
        "Text": "Egyptian Islamic Jihad",
        "Start": 46,
        "End": 68
    },
    {
        "TypeName": "ORG",
        "Text": "Vanguards of Conquest",
        "Start": 82,
        "End": 103
    }
]