Donald Triplett — the first person to be diagnosed with autism spectrum disorder — died last week at the age of 89. Triplett had an enormous influence on the treatment and study of autism. Journalists Caren Zucker and John Donvan produced a documentary about Triplett’s life and joined CBS News to discuss his legacy. Source

Supreme Court Justice Samuel Alito took the rare step Wednesday of responding to a report in ProPublica which detailed a luxury vacation he accepted from a hedge fund billionaire and prominent GOP donor who later had business before the high court. CBS News congressional correspondent Nikole Killion reports. Source

More than 30 people were injured in an explosion Wednesday at the Paris American Academy, a fashion and design college. Officials said a gas leak likely caused the blast. Imtiaz Tyab and Ramy Inocencio report. Source

An article in the journal “Nature” titled “The Illusion of Moral Decline” argues that the perception that things are going downhill is heavily influenced by the way our brains work, particularly, two well-established psychological phenomena. Adam Mastroianni, experimental psychologist and author of the piece, joins CBS News to break down his findings. Source

Search crews detected banging noises in the Atlantic Ocean as they continue to scour for the five-passenger Titan submersible which went missing during an expedition to the wreckage of the Titanic. But as the multinational search coalition scours the North Atlantic — time is running out. CBS News correspondent Roxana Saberi reports. Source

Ballard made a “promise to never take anything from that ship.” But court battles over the Titanic’s artifacts have ensued for decades. Source

The DNA sample revealed a near-exact match to the DNA found on a knife sheath found at the scene of the quadruple murder in Idaho last November. Source

Republican lawmakers are pushing ahead with their criticism of the Justice Department for the Hunter Biden plea deal, while a well-known Democratic senator is still flirting with the idea of a presidential run. CBS News’ Major Garrett and Ed O’Keefe break down the latest in a panel discussion with Politico reporter Olivia Beavers and political correspondent Liz Landers. Source

With countless sunscreens on the market, trying to choose which is the safest and most effective can be overwhelming. Nikki Batiste takes a look at some of the different factors to consider. Source

The search continued Wednesday for the Titan, a five-passenger submersible that disappeared during an expedition to the wreckage of the Titanic in the Atlantic. While scouring the ocean, Canadian planes detected underwater banging noises. Officials say the occupants may only have enough oxygen left to survive until Thursday morning. Roxana Saberi has the latest. Source