http://www.denverpost.com/2016/10/02/homeless-camp-grows-colorado-springs/
https://nonprofitquarterly.org/2015/11/16/the-homeless-vs-the-creek-beds-in-colorado-springs/
There are zero references to cannabis in any of those articles.
Ironically, a grossly disproportionate number of homeless are military vets suffering from PTSD... for many of whom there is no effective treatment except cannabis.
So next time you look with contempt upon that ‘living garbage’, perhaps you should pause for just a moment to consider how many of them are in that condition because they put their lives on the line to defend your right to hold an ignorant, cruel, and tyrannical opinion.