Cikizwa and Nkanyezi get into a heated argument that escalates into a deadly fight as they both become angry, and Cikizwa eventually pushes Nkanyezi with her outstretched palm, causing her to fall and bang her head on the table's corner. Nkanyezi starts bleeding, and Cikizwa rushes her to the hospital. When they get in the hospital parking lot, Nkanyezi collapses and dies from a head injury. Required: $4\mathrm{.}1.$ Explain whether Cikizwa is guilty of murder with reference to all elements of a crime.