The third of three children who police say were stabbed by their mother in Florida has died.

Palm Bay police said in a statement Monday that 5-month-old Christopher Swist was pronounced dead Sunday night.

Jessica Lacey McCarty chose to remain in custody under a special medical watch when she appeared in court Sunday to face charges of two counts of murder and one count of attempted murder. Authorities say the 33-year-old called 911 Friday night and said she had killed her children.

Authorities found her in the front yard carrying a knife. Officers then found her three children unresponsive.

Officials say 7-year-old Laci McCarty and 6-year-old Philip McCarty were taken to area hospitals and pronounced dead Friday night. Swist died Sunday at an Orlando hospital.