A US court has charged 7 murder charges with a mother and son for killing her husband and sister.

Delores Morgan and her son Ted Connors were arrested by US authorities in 1995 on charges of killing the stepfather and her sister.

The son shot dead her husband, Nicholas Connors, in 1995 in the US state of New Jersey, where he was the motive of the crime, and investigations showed that he obtained a life insurance link worth about $ 200,000.

The plaintiffs said that the son confessed that he had conspired with his mother to commit the murder of her husband, and also confessed to conspiring with her to kill her sister Mejia in late 1994, after stabbing her 23 times.

The son, who confessed to trading in drugs, said that he had killed his mother's sister, because it had caused him to "lose his money."

The case remained under investigation until the son confessed a few months ago, and the mother and son were arrested last January