09/27/2011: Babysitter Jennifer Duran Martinez, 35, is being held without bail on suspicion of child abuse homicide. On Thursday, September 22, Martinez called 911 to report that 4-month-old Kaysen Calhoun, a child she was babysitting in her home, was coughing up blood. The boy was rushed to the hospital, where he died on Saturday. Murray, UT., police allege that Martinez admitted shaking the baby when he would not stop crying.