Original sentence: In order to keep his vow, Johnny creates the identity of Johnny Thunder, by changing clothes and darkening his hair to black.Johnny becomes a schoolteacher, but however, soon found himself in a situation where violence is required.Thus "Thunder" is not the character's genuine surname, making it unlikely that any familial connection exists between the two Johnnys
Edited sentence: In order to keep his vow, Johnny created the identity of Johnny Thunder by changing clothes and darkening his hair to black.Johnny became a schoolteacher, but he soon found himself in a situation where violence was required.Thus, "Thunder" is not the character's genuine surname, making it unlikely that any familial connection exists between the two Johnnys