A crazed brother gunned down his sister in a murder suicide that started outside a New Jersey home, according to authorities.

Daniel Lopez, 60, shot his sister, Janet Camacho, and left her to die on the front steps of a Pennsauken home in southern New Jersey Wednesday morning before he turned the gun on himself, according to the Camden County Prosecutor’s Office.

Police were called to a report of shots fired and a man armed with a handgun at a home on Bethel Avenue around 9 a.m.

When cops arrived, they found Camacho on the stoop. She was rushed to Cooper University Hospital where she was declared dead shortly after, officials said.

Authorities…

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