A Latino murdered an 18-month-old boy in his care just because he couldn't handle a common hazard of diaper-changing

Martin Alvarado Jr., 23, flew into a rage and beat Edwin Eli O'Reilly, his girlfriend's son, to death after the toddler peed on him while he was changing his diaper. The Cook County medical examiner's office says that the boy died of multiple blunt-force injuries and the death has been ruled a homicide by child abuse. Alvarado was arrested after police and paramedics called to the home found the unresponsive child; he has been charged with first-degree murder. A spokeswoman for the Illinois Department of Children and Family Services says that the agency has had previous contact with the family, and one of Edwin's siblings has been taken into protective custody. Alvarado has confessed to killing the child.