The 14- and 18-year-old brothers arrested Thursday in the killing of a Canton T-Mobile store employee are also accused of armed robbery in New Jersey. Baltimore police on Friday shared new information on the arrests of Arthur McCaden and his 14-year-old brother in Sunday's fatal shooting and armed robbery at the Canton T-Mobile store. The 11 News I-Team confirmed that McCaden was a student at Frederick Douglass High School. Fabian Sanchez Gonzalez, 23, was an employee at the store on Boston Street. Police told the I-Team that McCaden and his brother went into the store, announced a robbery and shot the employee before demanding property from other people in the store and fleeing.