eye·wit·ness 
/ˈaɪˈwɪtnəs/ noun
plural eye·wit·ness·es /ˈaɪˈwɪtnəs/ noun [count] : a person who sees something happen and is able to describe it
▪ The police are hoping to locate an eyewitness to the shooting. ▪ He was able to give an eyewitness account of the shooting.
▪ The police are hoping to locate an eyewitness to the shooting. ▪ He was able to give an eyewitness account of the shooting.
