Factual and procedural background
Dyana and Christopher Ko were the parents of three children. Their youngest child, Landon, was born with Rubinstein-Taybi Syndrome, a rare genetic disorder. The Kos both worked outside of the home and contracted with Maxim Healthcare Services to provide an in-home health care aide to care for Landon when they were at work or elsewhere. One of the in-home workers who was sent by Maxim to work in the Kos’ home with Landon was named Thelma Manalastas. After Manalastas had provided care for Landon for a year, the Kos went with their older two children to a basketball tournament on April 22, 2017.