Going back to the original, here we have the climatic scene in 1980’s Friday the 13th which the original killer, Mrs. Pamela Voorhees (Betsy Palmer), attacks camp counselor Alice (Adrienne King) in a fit of psychotic rage to avenge her son Jason’s death, some 23 years prior. However, Mrs. Voorhees ends up on the losing end of the machete, a tool that plays a key role in subsequent entries in the Friday the 13th franchise ….as does Mrs. Voorhees’ head.
Ms. Palmer is still alive at 83 and hasn’t completely retired from acting. One of her latest on-screen roles was in the 2005 horror short Penny Dreadful and she had a voice role in 2007’s Bell Witch: The Movie. Adrienne is also still alive and well, and makes occasional appearances at horror events and conventions, where fans can meet her.
Author’s Addendum: On May 29, 2015, Betsy Palmer passed away of natural causes at the age of 88. Further info here.