New Delhi, Sept. 7 -- A 23-year-old woman who fled war-torn Ukraine and resettled in the United States was allegedly killed in a violent attack while sitting on a train in North Carolina.

Tesla CEO Elon Musk later reacted to the incident on social media, calling it a "nightmare."

According to various media reports, the victim is identified as Iryna Zarutska, was murdered on August 22. Footage circulating online appears to show the moments Zarutska boarded the train shortly before the fatal assault.

The Charlotte-Mecklenburg Police Department has identified the suspect in the fatal train stabbing as 34-year-old Decarlos Brown, a repeat offender. Authorities confirmed that Brown has been charged with first-degree murder in connection wit...