Read more: Pedophile priest Tony Walsh face is slashed in jail

One of Ireland’s worst pedophiles and former priest, Tony Walsh, was slashed in the face by a fellow inmate and sex offender.

A Nigerian sex offender is now the only suspect for slashing, “Fr Filth”, from the ear to the cheek. It is believed the inmate was paying off a debt through the attack.

The former priest, Walsh was attacked as he returned to his cell following mass in the Midlands Prison last Sunday.

Walsh still maintains that he does not know who attacked him. Walsh is 56-years-old and is currently serving a 12-year-sentence for the indecent assault of three young boys in the 1980s.

According to the Evening Herald, the authorities are treating the fact that he can not identify his attacker with skepticism. Authorities believe that the attacker slashed Walsh as a “payment for a debt” to a third party who had a grudge again Walsh.

A senior officer said “The attack was likely done as a favor, and would have wiped the slate clean as far as the debt was concerned."