Chicago ex Sargent frames 180 people, gets only 22 mos

"Disgraced former police Sgt. Ronald Watts and the unit he led for nearly a decade until 2012 was accused of planting drugs on suspects, falsifying police reports and falsely accusing housing project residents and others of drug crimes unless they paid the officers off." *

"The Chicago City Council unanimously approved a $90 million settlement for nearly 200 civil rights violations involving a notorious former police sergeant who framed people for drug crimes they didn’t commit"..."involving 180 wrongfully convicted people who spent close to 200 years combined behind bars." *

* https://apnews.com/article/chicago-police-corruption-ronald-watts-3a6ea473c28f9716e818c0c4dc5b2536


Why did he do it?