Cellist serenades mourners at Colorado memorial

Ten people were killed on Monday when a man opened fire inside the store.

Police were searching for clues on Wednesday (24 March) into what led a 21-year-old man, described as paranoid and angry to open fire at a Colorado supermarket, killing 10 people in the second deadly U.S. mass shooting in a week.

The suspect, Ahmad Al Aliwi Alissa, was in jail awaiting his first court appearance following the rampage.