A child has died after a stray bullet went through an apartment window and hit him in the head. 

Buffalo police say it happened in the 400 block of William Street around 8:30 p.m. on Saturday. Police say 12-year-old Bandar Elwaseem passed away shortly after at a nearby hospital.  

According to police, the shots were being fired at a car from the Towne Gardens apartments area.

A 22-year-old man, who was sitting in a car in the complex, was also hit by a stray bullet. He remains hospitalized in stable condition after undergoing surgery. 

"This is a 12-year-old kid, had the rest of his life in front of him. I can't imagine what those parents are going through. I can't imagine where you even begin, where do you start over with something like this?" said Buffalo Police Captain Jeff Rinaldo.

A memorial has already been started outside Elwaseem's home.

Elwaseem was a student at International School #45. Grief counselors will be at the school this week to help students and teachers through the difficult time. 

Lafayette International High School, Newcomer Academy at Lafayette, Montessori School #32 and Hutchinson Central Technical School also will be assisting students and families in this time of need.

Elena Cala, special assistant to the superintendent for public relations at Buffalo Public Schools, released a statement on the loss. It read in part:

"We and all of the members of the Buffalo Board of Education express our profound sadness and dismay for the tragic and senseless violence that has claimed the lives of so many children in our community. On Saturday evening, we lost another beautiful child, full of potential, to senseless gun violence that too frequently occurs in our Buffalo neighborhoods. Too many of our precious children are either injured or gone too soon due to gun violence. While we are focused on their graduation and bright futures, it is always horrific and unimaginable when a child is taken from us in this way.

"Board President Nevergold and I call on our faith-based institutions, our citizens groups, our parents, our Mayor and elected officials, and our schools — all of US — to work together to increase the peace and take clear measures to end the violence NOW!"

With the help of Crime Stoppers and the FBI, a $12,500 reward is being offered in exchange for information that leads to an arrest. Anyone with information can call or text the confidential tip-line at (716) 847-2255.