Baden happens to have been involved in many well-known cases and investigations. I don't know his career timeline, but my guess is that he did what they told him regarding John F. Kennedy and Martin Luther King Jr., which cemented his career as a 'top forensic expert'. He apparently pushed the 'magic bullet' theory in the Kennedy assassination, and I just saw this [sorry for ridiculous link; page is yanked, and this is from Bing cache]:
"In the 1970s, he led a panel that looked back at the deaths of JFK and MLK. He ultimately stated that he did not believe the CIA played a role in the former’s death."
https://cc.bingj.com/cache.aspx?q=https%3a%2f%2f71republic.com%2findex.html%40p%3d35912.html&d=4684662694415039&mkt=en-US&setlang=en-US&w=IsdGBFQ7u71SVvGYOA5Vjmx8DvXwxohk