The state on Tuesday officially permanently revoked the credentials of a Auburn man charged with second-degree rape of a disabled senior citizen in his care at a Renton facility.

Samuel Kiranga Njuguna was charged in September with the rape of a 65-year-old woman in June. The woman is described in charging papers as deaf, blind and severely mentally disabled.

Njuguna’s license was suspended following the charges. It has now been permanently revoked.

According to charging documents, the victim suffered injuries consistent with rape that were discovered by another caregiver. An employee at the facility also found a condom wrapper in the trash, wrapped in latex gloves, that was turned over to detectives.

DNA samples were collected from all of the male workers except Njuguna and all other workers were cleared by those results. Police located Njuguna in Portland and spoke to him by phone. He allegedly told police he would meet them in Renton, but never showed up.

Further investigation revealed he had driven to Las Vegas where he attempted suicide and was admitted to a local hospital. Police contacted the hospital, but Njuguna had been released. However, police received a warrant for a DNA sample, which proved a match for the DNA on the condom found in the trash at the facility.

Njuguna has no right to apply for reinstatement of his nursing assistant credential.