An inmate of the Penitentiary Judge Placido de Souza in Caruaru, Wasteland, was murdered on the morning of Thursday . Cristiano José da Silva, 33, who was serving time for robbery, was stabbed in the prison unit and died at the Regional Hospital of the Wasteland... The crime happened around 8 am on Thursday in the church that sits inside the penitentiary. According to information from the family of the murdered man, the crime may have been motivated by a discussion that he was involved in last Monday . The killer Chrisalecson Pereira Silva, 20, who is also serving time for robbery, said he killed his rival, the fact of even having assaulted him with a slap in the face the day before and so took the victim flinch while praying in chapel the prison unit. This was the first murder recorded in Caruaru in June. From January until now, 57 people were murdered in the city.