You can read the docket... he slipped through the cracks at various places. He flew at some airline in the Bahamas for a while, and managed to somehow get through Mesa's first officer training (but failed captain upgrade twice).
https://www.forbes.com/sites/jeremybogaisky/2019/12/19/pilot-of-doomed-amazon-air-flight-had-poor-training-record-seemed-confused-before-crash-ntsb-report-suggests/#480a0b5e79cc FO had a history of complete incompetence, did not disclose failures at previous employers... Numerous contributing factors as well.
Man The inside of this guy’s head was a dumpster fire. Sounds like auto go-around led to acceleration causing a g-excess phenomenon in Aska’s already chronically f’d up head.