He was their father. They called him Daddy. But on that fateful morning, Shamar Elkins answered their trust with bullets.
The maniac who slaughtered seven of his children and one of their cousins in Louisiana on Sunday was set to do battle with his estranged wife in divorce court Monday. Stress-riddled Army vet Shamar Elkins, 31, called his mom, Mahelia Elkins, and stepdad, Marcus Jackson, on Easter Sunday to tell them that his wife of two years,…