According to [1] the average pre-trial detention in Cook County was 51 days in 2017-2019 and 76 in 2020-2021. Searching for Agustín Toscano I see many references to him being the detainee with the longest pre-trial period, so I think he actually is a pretty dramatic outlier. Though it is true that according to [2] there are at least two other people on murder charges with similarly long pre-trial detention periods.
Which is not to say that it isn't horrible to be even a few weeks in pre-trial detention let alone 51 days, but I don't think 14 years is a particularly regular occurrence.
1. https://loyolaccj.org/blog/pfa-jail 2. https://www.chicagotribune.com/2023/12/31/stalled-justice-sl...