I discovered this muso by accident today as a result of browsing through various covers of Björk’s Unravel on YouTube and finding this atmospheric, well-executed version: Unravel – Björk (Piano & Vocal Cover by JD Justice).
More of the artist’s work (mostly covers) is available on YouTube Channel jdjustice72. The songs may also be downloaded as high-quality MP3 (320kbps) files from his website. But beware! Anything recorded prior to 2009 is archived into massive zipfiles exceeding 1.5 GB, one file per year. If you have the time and the bandwidth, the files are well worth picking up.
An aside: The Thom Yorke/Radiohead version of Unravel is really strange but ends beautifully with an extended instrumental section.