After South Korean President Yoon Suk Yeol shockingly declared martial law on Tuesday, opposition parties Wednesday sought to impeach him. While South Korea’s reputation as a democratic stronghold in Asia may be tainted by the situation, Washington’s support is not expected to change, with a deeply vested interest in stability in South Korea. Ramy Inocencio reports from Seoul.

Brian Thompson, the CEO of UnitedHealthcare, was fatally shot outside a New York City hotel Wednesday in what authorities are calling a “targeted attack.” CBS News has learned the gunman, who remains at large, went to Starbucks shortly before the shooting and may have left behind crucial evidence. Meg Oliver has the latest.

Here’s a look at the top stories making headlines on the “CBS Evening News with Norah O’Donnell.”