What to Watch on Monday: ID’s true crime doc on Robert Durst, beauty queen drama ‘The Bachelor’

Robert Durst: An ID Murder Mystery (9 p.m., Investigation Discovery) - ID’s two-night event looks at the life and crimes of Robert Durst, heir to a New York City real estate fortune who murdered at least one but probably three people and got away with it -- until now. It’s a crazy story that those who have watched the HBO true crime series “The Jinx” already know (I’ve seen “The Jinx,” still watching this). In a nutshell, Durst probably killed his first wife, definitely killed and dismembered a dude in Texas and almost for sure killed his friend in Beverly Hills. This guy is pretty unbelievable. The second part airs tomorrow night at 9.

Also on tonight . . .

The Bachelor (8 p.m., ABC) - Our Miss North Carolina USA Caelynn Miller-Keyes goes on a “pirate adventure” group date tonight, while Raleigh’s Nina Bartula goes on the “strongest woman challenge” group date, which features musclebound actor Terry Crews. Don’t be one bit surprised if Miss North Carolina and Miss Alabama (Hannah Brown) get into it at tonight’s pool party.

Big Brother: Celebrity Edition (8 p.m., CBS) - This starts tonight. A few people you’ve maybe heard of: actor Joey Lawrence, Olympic swimmer Ryan Lochte, Olympic bobsledder Lolo Jones, real housewife Kandi Burruss, OJ Simpson’s pal Kato Kaelin, Trump’s pal Anthony Scaramucci.

Some programming descriptions are provided by networks.