Officers were called to a disturbance on King Street East shortly after midnight on July 6th where they found a man suffering from a serious stab wound.
The victim was rushed to hospital and later released to recover at home.
A Wallaceburg man was arrested a short time later and warrants issued for two Chatham men. One of those suspects turned himself in a police headquarters later the same week.
Chatham-Kent Police now say the last remaining suspect turned himself in on Sunday evening.
The accused, previously identified as a 21-year-old man, has been charged with aggravated assault and was held in custody for a bail hearing.