Is Longinus the name of the Roman centurion who pierced Jesus?

I was reading from this Wikipedia article that the name of the centurion officer who pierced Jesus with a 3-foot pike on the left rib was **Longinus** and that his words "**Truly this man was the son of God**" were said after the blood and water coming out of the pierced rib cured him of his eye infection and that he later converted. Is this true?