UTICA (WWJ) - A 22-year-old man has been charged with first degree murder in what's described as a horrific attack at a Utica park.

The alleged killer, identified by Utica police as Miguel Mansour, was arrested at the scene of the crime in Grant Park, off Hahn Street, on Saturday.

The victim, a man in his 50s, was celebrating his grandchild's 1st birthday party with family at the park, shortly before 1 p.m., when reports say he approached Mansour and asked him to stop doing drugs in view of the children.

That's when the suspect allegedly pulled out a large knife and stabbed the grandfather more than a dozen times.

Utica police said the responded immediately to find the incident still in progress and quickly took Mansour into custody. The victim, who is not being named publicly by police at this time, died at the scene.

No one else was injured.

"This appears to be an unprovoked incident which left a grandfather unable to return to his family," police said, in a media release. "The victim was an auto designer who is described as a friendly individual who always spent time with his grandchildren."

Mansour was arraigned on the murder charge in the 41-A District Court of Shelby Township on Wednesday.

As an investigation continues, police are "working closely" with the Macomb County Prosecutor's Office on the case.

"The severity and nature of this horrific crime shocks us to the core," Prosecutor Eric Smith said, in a statement. "Although we may never understand why this heinous crime happened, my office is committed to making sure the defendant is tried and convicted of this violent murder, hopefully bringing some peace and justice to all of those impacted."

If convicted, Mansour faces life in prison with the possibility of parole.

