JACKSON, Miss. — A 15-year-old who is charged in a string of robberies and carjackings is also a suspect in two murders, according to Jackson police. Montravious Baker was arrested Saturday with another man at an apartment complex on Rainey Road. Both suspects are charged with six armed robberies and two carjackings. Baker is also charged with a third carjacking, in which police said he nearly ripped the clothes off a woman and then bragged about it on social media, according to a police detective who testified during a Monday court hearing.