The number is jail house or street slang for murder, maybe police use as well.
When you see a Q post with 187 and [] whatever is in the brackets...well...its not good.
https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?sectionNum=187.&lawCode=PEN
I belive that Bagster is the FR California Statute Code Master.
Number 187 is a blend of the energies of number 1, the vibrations of number 8 and the energies of number 7. ... Angel Number 187 is an auspicious sign of manifesting prosperity, achieving success, positive progress and spiritual advancement.
Are you prepared to provide bags with size 25" hats from hereon out?