For this purpose, all joint principals will be treated as knowing everything that happens, whether they were present or not, and the requisite "mens rea" formed by one will be imputed to the others to enable a conviction.
All joint principals will be treated as knowing everything. This was for this purpose. This everything happens. They were present. The requisite "mens rea" formed by one will be imputed to the others. This was for this purpose. This was to enable a conviction.