Marjorie Ann Orbin was born on October 29, 1961, in Boulder City, Nevada. She grew up there, but specific details about her early childhood are not well documented. As she grew older, she became known as a Las Vegas showgirl. This job brought her into the public eye and allowed her to experience the world of entertainment.

Marjorie married Jay Orbin, who was a jewelry dealer. Their marriage did not seem to be without complications. According to reports, Marjorie had relationships with several men during her marriage.

Marjorie Ann Orbin murdered her husband, Jay Orbin, on or about September 8, 2004. This date was significant as it was around the time of Jay's 45th birthday. Jay was a jewelry dealer who had returned home to Phoenix after a business trip to Florida. He was last seen alive when he arrived at his home on September 8.

After Jay's disappearance, police investigated the case. They believed that Marjorie had shot and killed him in an attempt to hide her affairs with other men and to gain his money. Following the murder, she reportedly dismembered his body using jigsaw blades. The investigation led to the discovery of Jay's torso in a plastic container on the outskirts of Phoenix on October 23. The rest of his remains were never found.

Marjorie was arrested and put on trial for the murder. The trial lasted for eight months, and in 2009, she was convicted of killing her husband. On October 1, 2009, she was sentenced to life in prison without the possibility of parole. Currently, she is serving her sentence at the Arizona State Prison Complex – Perryville.