Martin Scorsese confirms The Devil in the White City to be made with Leo
According to him they wanted them to start shooting the movie in January
http://www.cinemablend.com/news/1602390/leonardo-dicaprio-and-martin-scorsese-have-picked-the-perfect-book-for-their-next-film
http://consequenceofsound.net/2016/12/martin-scorceses-next-film-will-be-the-devil-in-the-white-city-with-leonardo-dicaprio/
http://www.independent.co.uk/arts-entertainment/films/news/the-devil-in-the-white-city-film-martin-scorsese-leonardo-dicaprio-hh-holmes-serial-killer-movie-a7486186.html
http://moviepilot.com/p/martin-scorsese-breaks-devil-in-the-white-city-silence/4173963
http://www.catchnews.com/hollywood-news/why-making-dicaprio-damon-starrer-the-departed-was-unpleasant-for-martin-scorsese-1482138728.html
http://www.torontosun.com/2016/12/19/martin-scorsese-teases-next-film-with-leonardo-dicaprio