David López is a Spanish comic book artist from Las Palmas de Gran Canaria. He started working on comics in in the late 90's before starting work with DC Comics in 2002. While at DC he worked on a variety of books including Batman: Legends of the Dark Knight, Wonder Woman, Birds of Prey and Catwoman. In 2009 he started working with Marvel with Hawkeye & Mockingbird and more recently he's working on All-New Wolverine.
He's also the focus of the latest Quickdraw from Marvel where he does the Death of X variant for Amazing Spider-Man #15. The video is unique so far among the Quickdraws in that most of them start from a rough and go forward. López shows a few false starts as well before taking one through to completion. It's very interesting to watch.