Crime & Justice with Ashleigh Banfield: m-Th, 6-8 p.m. ET on HLN

Gabby Petito's parents have just filed a $50M lawsuit against police. Her dad speaks out Saturday night. Watch "Toxic Love: The Gabby Petito Tragedy" - a 2-hour look into the case that captivated the nation. Saturday 9pmET/PT on HLN 📺 Watch live or set your DVR now 🔎 Find HLN where you are: HLNtv.com (just click 'How to watch HLN') | HLN

On the Story: Weekdays, Noon-3 ET on HLN

12K views · 149 reactions | Man overboard! At NASA's Aquarius habitat, astronauts live and work underwater to prepare for long-term space missions. (Via CNNTech) | HLN | Facebook

Morning Express with Robin Meade: Weekdays, 6-11 ET on HLN

5K views · 44 reactions | What better way to welcome Donnie Wahlberg to the HLN family than with a round of Very Scaryoke!? Catch the series premiere of Very Scary People this Sunday at 9PM on HLN. | Morning Express with Robin Meade | Facebook

1M views · 7.2K reactions | Jilted husband wins nearly $9 million in lawsuit against wife's lover. WRAL TV https://trib.al/2mg5OR7 | Morning Express with Robin Meade | Facebook

7.4K views · 58 reactions | 'Near remission' or "regression"? Alex Trebek's "mind boggling" good news about his fight with Pancreatic Cancer is putting medical terminology to the test. https://trib.al/Dx5sS4E | Morning Express with Robin Meade | Facebook