the father one of one three children who were tragically killed in palm bay , florida , in march has spoken out about the kids he cared for and loved .
seven-year-old lacey mccarty , six-year-old phillip mccarty and five-month-old christopher swist died allegedly at the hands of their mother , jessica mccarty , in a botched murder-suicide .
christopher swist - father of the five-month-old and the man who was dating jessica mccarty just before the alleged killings - had nicknames for all of the children and coached the two oldest in little league baseball .