Following the Friday shooting deaths of Jennifer Hudson’s mother and brother in Chicago, her 7-year-old nephew was reported missing. Jennifer Hudson and her family are now offering a $100,000 reward for the safe return of her nephew, Julian King.

So far, William Balfour, estranged husband to Jennifer Hudson’s sister Julia Hudson, is the only person named in connection with the case. He is considered a “person of interest” and was named as a suspect in an AMBER Alert issued Friday.