Tevin LaMar Bonner came to Winston-Salem to do only one thing â to install an alarm system, like he had done all over the country. But, according to a Forsyth County prosecutor, his brief encounter with two teenage boys at a gas station after he had finished work would result in him getting shot 20 minutes later. About a week later, he would die at a local hospital. On Monday afternoon, those two teenage boys â Brandon Martelle Banks, 15, of the 1900 block of Althea Street, and Bayron Yovanay Estrada Gonzalez, 16, of the 1900 block of Butler Street â pleaded guilty to second-degree murder. Gonzalez also pleaded guilty to armed robbery and conspiracy to commit armed robbery. Banks pleaded guilty to conspiracy to commit armed robbery. They both had been facing charges of first-degree murder.