An excerpt from the above link:
"one of its strongest segments, featuring respected author and researcher Vince Palamara as its main talking head. Over the years, through his diligent hard work in locating and interviewing members of the Secret Service, Palamara has made himself the go-to expert on the subject of President Kennedy's protection―or lack thereof―in Dallas. I must admit that I have never been convinced the Secret Service was actively involved in the assassination. Yet Palamara's work most certainly gives reason to at least consider the idea that JFK's protection on November 22, 1963, was intentionally compromised."