Shattered Justice is an omnibus of four previously traditionally published titles by Paul Levine. (I think someone once mentioned that he was/is a MobileRead member?) Titles include
Solomon vs. Lord,
The Deep Blue Alibi,
To Speak for the Dead, and
Illegal. These are a mix across his Solomon/Lord and Jake Lassiter series, and
Illegal is a non-series title.
Shattered has dropped to $1.49 at Kindle US - a nice price if you don't have any of these. However, Levine's titles do go on sale individually from time to time, so check carefully before you buy!
Kindle US:
https://www.amazon.com/dp/B00DK05YBM/
Kindle US/Smile:
https://smile.amazon.com/dp/B00DK05YBM/