Peel Police are now investigating their 4th homicide of the year.

It was back on Valentine's Day, that police reported an altercation between 83 year old Beres Grayson and 32 year old Nathanial Hunter at their home on Earth Star Trail in Brampton.

Officers say Grayson suffered critical injuries during the altercation and was sent to Sunnybrook, where he died of the injuries on Wednesday.

Hunter was originally charged with aggravated assault, but will have that charge upgraded when he's next before a judge on Friday.

Peel police are asking any witnesses to come forward with any information they may have.