Collin Griffith has been charged with the murder of his mother Catherine Griffith in Florida, a year after he fatally shot his father in Oklahoma.

Collin Griffith called 911 on Sunday night and claimed that his mother, 39-year-old Catherine Griffith, was stabbed in the neck during a fight after she lunged at him with a knife and fell on it, according to the Polk County Sheriff’s Office. Police rushed to the home, where Catherine was pronounced dead.

Florida teen Collin Griffith charged with murdering his mother, a year after killing his father in a separate incident, police said.

Collin Griffith, 17 was accused - and absolved - in connection with the killing of his father over a year prior to the accusation involving his mother

Though the late mother's posts seem to allude to her family struggles, one poignant message shows her promising to "live life to the fullest."

According to the Polk County Sheriff’s Office, Collin Griffith, of Port Charlotte, murdered his mother, 39-year-old Catherine Griffith, also of Port Charlotte, in unincorporated Auburndale. Around 6 p.m. on Sunday, deputies said they responded to Collin Griffith's 911 call for help.

A teen who was arrested and released in the fatal shooting of his father in Oklahoma last year now faces charges in the killing of his mother in Florida, authorities said Wednesday.