Anyone can give an interview. The fact is there have been a whole lot of people that have given entirely made up stories about the JFK assassination. You can’t take anything seriously unless there’s hard evidence. Interviews with someone claiming involvement or knowledge, without evidence to back them up, are worthless.
Madeleine Brown is no different. See: http://dperry1943.com/browns.html
The first paragraph in “your” article and especially the first line says it all. If Madeleine’s story is hoax,then David’s story matches her’s!!!