The son of a woman found dead this week in a St. Paul house was charged Friday with strangling his mother and setting the duplex where she lived on fire. Michael Ray Caldwell, 20, of St. Paul, was charged with second-degree murder Lorine Mary Johnson, 49, after he confessed to the murder while undergoing a psychological evaluation at United Hospital.

A second teenager is charged with first-degree murder in last summer's slaying of a 13-year-old boy, according to an indictment unsealed this week in Minneapolis. Derrick Deangelo Catchings, 16, was certified this week to stand trial as an adult for the Aug. 24 death of Ray'Jon Gomez.

Seventeen-year-old Stephon Shannon is charged with aiding and abetting murder in connection with the death of Nizzel George, 5, who was shot and killed while sleeping on his grandmother's couch in north Minneapolis.

A grand jury has indicted a Minneapolis teen on a charge of first-degree murder in the June death of the 5-year-old boy shot as he slept on his grandmother's couch. If Stephon Shannon, 17, is found guilty of the charge, his automatic sentence would be life in prison without hope of release.

Police say 34-year-old Eddie Matthew Mosley, of St. Louis, Mo., has been charged with three felony counts of second-degree murder. According to the criminal complaint, Mosley was believed to have been trying to fight a sexual assault charge relating to a relative of one of the victims.

Murder charges have been filed against a mother and boyfriend in the "horrific" death of her 19-month-old. According to a newly filed criminal complaint, the toddler's death was caused by a blood infection from an untreated burn on his hand. He also had "internal bleeding" in his stomach, a "skull fracture" and a "cigarette burn" to his foot, among other injuries.