![A St. Mary's County Sheriff's Office car is seen on March 20, 2018, at Great Mills High School in Great Mills, Maryland, after a shooting at the school.](https://assets3.cbsnewsstatic.com/hub/i/r/2018/03/20/41166fa2-bce1-4727-b40c-4f2936e307b8/thumbnail/640x360g8/d4bae783be693be2f165981fe7d0ac61/maryland-school-shooting-934990974.jpg?v=25685eaa472b1a5dbb5bd46ae506d232#)
Sheriff: School resource officer faced off with gunman at high school
Maryland school shooting leaves gunman dead, students wounded
Watch CBS News
Alex Sundby is a senior editor at CBSNews.com. Based in New York, Alex has a master's degree from the Columbia University Graduate School of Journalism and a bachelor's degree in journalism and political science from the University of Washington in Seattle. He started his journalism career as an education reporter for a weekly newspaper in northern New Mexico. Before coming to CBS News in 2009, he worked as a freelance journalist in New York City, reporting throughout the five boroughs for the New York Post's metro section.
Maryland school shooting leaves gunman dead, students wounded
Political consulting firm Cambridge Analytica obtained personal data on more than 50 million Facebook users without their permission
CDC worker Timothy Cunningham mysteriously disappeared a month ago after leaving work early
Shana Elliott takes witness stand as Texas jury deliberates her punishment
Jim Gard says no one was around when he locked his classroom door during Florida school shooting
Stephanie Peterson also accused of sending nude photos to teenager
Amer Adi Othman was suddenly deported to native Jordan after living in U.S. for nearly four decades
Father of three dug sand tunnel into Florida dune; family from Texas was on their way to Disney World
Anti-Defamation League says 34 extremist-related killings were committed in 2017
Police arrest plastic surgeon after hospital received report that he showed up for surgery possibly intoxicated
Helmet camera captures Georgia firefighter catching child dropped from apartment fire
U.S. Navy veteran's mom twice denied visa to attend son's funeral in Arkansas around Christmas
Family alleges confrontation with police involved use of excessive force
Authorities annually warn people to cut mochi rice cakes into smaller pieces because of choking hazard
NASA says 3200 Phaethon is third-largest "potentially hazardous" asteroid to pass by Earth