Every day such incidents, look beyond these single cases, the root cause is the opening of flood gates at the very beginning, the airports at the countries where they people leave their country.
No free entry, simple e-visa application, done in 10 minutes, but 100% proof of a significant income or bank statement, e.g. let's say $40.000. Guess what ? Gone is flood of trouble seekers, walking tattoo panels, non-valeurs, alcoholist, jobless, schizophrenia, intoxicated boxing fanats, fake good sellers, cyber crime amateurs. Yes, I know some champagne in the pool Russians will still come, but they stick together in places I won't go.
TAT wants Pattaya to become the Saint Tropez of SE Asia. However, now comes the problem ... the hosts are not in style to become a Saint Tropez either. ST does not have a Walking Street, bars and bargirls. I learned Pattaya is as it is because the people who come to work there have the same life style in their home villages, it is not the innocent girl of Isaan comes to Pattaya and changed over there. She was always like that. Just visit the festivals in East Thai villages, it is Pattaya in mini format.
I therefore think the Thai officials believe of making Pattaya a luxury, mondaine seaside resort, getting rid of the thugs, is a very difficult mission.