James Musgrave 
Sins of Darkness [PDF ebook] 

Sins of Darkness begins the exploits of Dr. Abigail Soloman, a Soledad Prison psychiatrist who puts her life and her reputation on the line to prove that convicted killer, Sirhan Sirhan, is a Manchurian Candidate assassin. What if Robert F. Kennedy is assassinated by a fledgling group of extremists who hypno-program Sirhan Bishara Sirhan? This novel, the first in a series of Abigal Soloman Mysteries, shows how recent evidence discovered in Las Vegas in 1996 plunges fifty-five-year-old prison psychiatrist Soloman into a brainwashing and programming conspiracy group that has grown much larger than the one that killed Kennedy in the 1960s.