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PLAQUEMINES PARISH, La. (WGNO) – The Belle Chasse woman who confessed to injecting hand sanitizer into her son’s feeding tube — ultimately killing him — was sentenced to 40 years in prison without the possibility of parole. The sentence was the maximum allowable by Judge Kevin Connor.

Erika Wigstrom pleaded guilty to manslaughter on Tuesday for the death of her 17-month-old son, Lucas Ruiz, who had Down syndrome.

Lucas died January 23, 2014. An autopsy revealed his blood alcohol level was .28%, well over three times the legal limit for an adult.

Wigstrom was originally charged with first-degree murder and attempted first-degree murder after she told investigators she tried to poison her son while in the hospital in October of 2012  by pouring rum and perfume down his feeding tube.

A year later Wigstrom succeeded by using hand sanitizer. The hand sanitizer had a high alcohol content and caused Lucas’s blood alcohol level to rise.

During the investigation, Wigstrom admitted to detectives that she researched how much alcohol she would need to cause someone to die.