Demon
The contemporary Roman Catholic Church unequivocally teaches that angels and demons are real beings rather than just symbolic devices. The Catholic Church has a cadre of officially sanctioned exorcists which perform many exorcisms each year. The exorcists of the Catholic Church teach that demons attack humans continually but that afflicted persons can be effectively healed and protected either by the formal rite of exorcism, authorized to be performed only by bishops and those they designate, or by prayers of deliverance, which any Christian can offer for themselves or others.
Giancarlo Gramolazzo
He was dedicated during 30 years to exorcism, becoming president of the International Association of Exorcists, founded in 1990 by father Gabriele Amorth (1925–2016), who later remained its honourable president and 5 other priests.
Father Gramolazzo has over thirty years experience as an exorcist.
He helped Father Gabriele Amorth in a 1999 exorcism of a nineteen years old woman. The next day the same woman who appeared at the Vatican underwent another exorcism performed by Pope John Paul II.