The group were in Chicago at the time of the arrest of their driver. Joe Lopez Conviction and Sex Offender status In 2006, Joe Lopez was convicted of two counts of aggravated sexual assault of a child and a count of indecency with a child when his niece provided testimony against Lopez in court. Lopez originally was sentenced to 20 years but was paroled in February 2017. As the board was considering his parole, court documents showed that Lopez also fathered a child with another underage girl, who was 14 years old at the time. Since there were two separate instances of sex with underage girls, advocates objected to his parole. Lopez is required to register as sex offender for the rest of his life and can be found on the Texas Public Sex Offender Website. Band members First lineup (1978-1984): Joe Lopez - vocals Jimmy González - guitar and backup vocals (d. 2018) Juan Murillo - bass and backup vocals Hector Augusto Flores - keyboards Adolfo Garcia: - drums Second lineup (1984-1997): Joe Lopez - lead vocals Jimmy González - vocals and guitar (d. 2018) Tommie Gonzalez - conga and sax Alfonso Gonzalez (Super Boy) - accordion Frankie Caballero - accordion Robert Chavez- bass Mario Gonzalez - bass Brando Mireles - keyboard Adolfo Garcia - drums Ricardo Barron - percussion Rebecca Valadez - vocals Homero Esquivel - accordion Joe Lopez y La Nueva Imagen Mazz (1998 - 2006) Joe Lopez - lead vocals Brando Mireles - keyboard Richard Barron - Drums Larry Villanueva - Drums Ben Ramos - Keyboard / Accordion Danny Rodriguez - Bass Tony Cisneros - Guitar Jimmy Gonzalez Y Grupo Mazz (1998 - 2017) Jimmy Gonzalez - Lead Vocals / Guitar Mike Gonzalez - Drums Adolfo Garcia - Drums Joseph Gonzalez - Percussion Johnny "Johnny Rod" Rodriguez - Keyboards Xavier Padilla - Keyboards Frankie Caballero - Accordion J.R. Gomez - Accordion Tommy Gonzalez - Saxophone Art Ramirez - Bass Carlos Gonzalez - Bass Jay Alaniz - Bass Joe B. - Vocals Danny Ortiz - Vocals Rebecca Valadez - Vocals Kaci Zavala - Vocals Studio albums 1978: Mazz 1978: Mas Mazz 1979: El 1980: Class 1980: 1980 1981: The Look of Mazz 1982: Command Performance 1982: Pesado 1983: The Force 1984: Standing Ovation 1984: It's Bad! 1985: The Bad Boys 1985: Number 16 1986: La Continuacion(Number 16 Part 2) 1987: Dance Your Mazz Off 1987: Beyond 1989: