It does not seem to me that it exists as typified in any jurisprudence except as a descriptive title within the penal code, but if it is, it is defined in the singular. Perhaps it will even be part of a more complete text. See crime, against, life.
They are all those crimes that affect the human being in its integrality, either properly against life itself or against the things that allow it to develop such as health, work, education, good name, etc.