Syrian soldiers are killing Syrian civilians -- just as all police and soldiers are trained to do. This modern-day suburban combat is what militaries all over the world have been practicing for, not simplyl in the Middle East, for more than a decade.
Why? It is because most "developed" countries are related to the American-British Military-Industrial Complex, which calls for war. The MIC rules the world by monetary means but gladly resorts to imperial force when necessary. The only opposition comes from individuals under attack, and the MIC is only too happy to oblige them by meeting them tit for tat using overwhelming force and draconian measures.
Syria on Fire: Homs Bombardment
Wounded British photographer pleads for help