John “Will” Fritz
J.W. Fritz's memorial photograph on the site, Find a Grave
Lawman, Kennedy Assassination Figure. As head of the Dallas Police Department's Robbery-Homicide unit in 1963, he was Lee Harvey Oswald's primary interrogator. Law enforcement officers led by him interrogated Oswald over the less than 48 hours between his arrest and death. John Fritz was present for more of the questioning than any other officer.
Find A Grave, database and images (https://www.findagrave.com : accessed 17 March 2018), memorial page for John “Will” Fritz (15 Jun 1896–19 Apr 1984), Find A Grave Memorial no. 9809, citing Restland Memorial Park, Dallas, Dallas County, Texas, USA ; Maintained by Find A Grave .
added on 23 Nov 2013