Police issued an alert on Sunday for 33-year-old Onur K., wanted for questioning after four people were found killed in a home including his two young children. The mother of the children and their grandmother were also found dead in the Etten-Leur home on Saturday evening.
Authorities did not immediately identify K. as a suspect. "We are also concerned about his well-being," police said. "For this reason, we are also publishing his photo to find him as soon as possible."