Police arrested four suspects in Chon Buri province over the murders of two Russian siblings and a Thai family of three. The PM says the government will push for quick trials, won't support sentence cuts for serious crimes, and has ordered tighter security and more patrols. For tourism-facing businesses in Pattaya and Chon Buri, expect more police presence and possibly stricter scrutiny in the area, but the PM says the crimes were individual acts and not a sign of wider danger.