Tad Ryerstad was a self proclaimed vigilante of Bludhaven. He'd prowl the streets every day and deal 'justice' to those who do wrong. In reality, Tad is a thug who never listens to reason and often beats innocent people. He spent his spare time reading comics that "The Tarantula" had sold to him, thus causing him to take upon the title of "Nite-Wing".
Exerpt from Scribblenauts Unmasked: Nite-Wing is actually Tad Ryerstad, a comic book geek turned vigilante. He has no metahuman abilities and is equally dangerous to the innocents he saves as he is to the criminals he attempts to capture.