The child, Liam Conejo Ramos, was told to knock on the door and lure his dad out, according to his school. The father and son are now in a holding facility in Texas
https://news.sky.com/story/ice-officers-detain-five-year-old-after-using-him-as-bait-to-capture-dad-school-claims-13497748?dcmp=whatsapp 
