According to the DEA there has NOT been any deaths involving Marijuana except in 2015, people died from an explosion. That's it.

2020

https://www.dea.gov/sites/default/files/2021-02/DIR-008-21%202020%20National%20Drug%20Threat%20Assessment_WEB.pdf

2019

https://www.dea.gov/sites/default/files/2020-01/2019-NDTA-final-01-14-2020_Low_Web-DIR-007-20_2019.pdf

2018

https://www.dea.gov/sites/default/files/2018-11/DIR-032-18%202018%20NDTA%20%5Bfinal%5D%20low%20resolution11-20.pdf

2017

https://www.dea.gov/sites/default/files/2018-07/DIR-040-17_2017-NDTA.pdf

2016

https://www.dea.gov/sites/default/files/2018-07/DIR-001-17_2016_NDTA_Summary.pdf

2015

https://www.dea.gov/sites/default/files/2018-07/2015%20NDTA%20Report.pdf