Without referencing the specific events yesterday, a common issue you may get (not just here in Liverpool) is people drinking, arguing and events spiralling.What sort of nobhead shoots someone having a pint?
Whereas in the past, people would have a scrap or a straightener over an incident, it's now sadly far too common for people to fall back on using weapons.
If an attack is premeditated over a period of time, shooting at someone at a distance from a cark park in a busy pub, with numerous witnesses, ain't sensible.
Such actions wreak more of an act of spontaneous anger or retribution.