Born in West Palm Beach, Florida, Shaun grew up twenty minutes north in the town of Jupiter. He has three brothers (two older, one younger) and a half-sister.

Shaun attended Jupiter High School before going on to Florida Atlantic University, where he studied medieval and renaissance literature. Shaun has also studied emergency medicine, gaining his EMT certification, and firefighting. Ultimately, he ended up working with computers designing databases, building apps, and coding websites before publishing his first book, The Deathday Letter.

Shaun currently lives in Seattle, WA and works full time as an author. In his free time, he enjoys baking, running, designing 3D environments for virtual reality, and reading.