A St. Louis area mother has been found guilty of suffocating her 3 month-old daughter in 2008 and injuring her infant son in 2009. Sharnique Jones of Pine Lawn, in east St. Louis County, was charged with second degree murder, endangering the welfare of a child and assault.

Authorities began looking into the daughter’s death after Jones’ weeks-old son was taken to a hospital several times because he had stopped breathing. Jones admitted to trying to suffocated him, and to pressing her daughter’s face into a pillow.