Just days before the tragedy, Shamar Elkins appeared to share what looked like a quiet, ordinary moment with his eldest daughter — the kind of post no one would have looked at twice at the time. A simple caption. A calm tone. Nothing that seemed to warn of what was coming. “Just us,” the moment seemed to say. “Just a normal day.” And now, that is exactly what people cannot get past.
SHREVEPORT, La. — A man in Louisiana killed eight children Sunday in a shooting that authorities described as a domestic violence incident and was later killed by police…