Professor Ramiro Martinez, Jr. received his Ph.D. from The Ohio State University in 1993. He was formerly an Assistant and Associate Professor of Sociology and Criminal Justice, an affiliated Professor in Black American Studies, and on the Faculty in the Center for Drug and Alcohol Studies at the University of Delaware. Professor Martinez has held appointed and elected positions in the American Society of Criminology, the American Sociological Association, and is on the editorial board of the journal Criminology. He is a member of the National Consortium on Violence Research (NCOVR) located at the Heinz School of Public Policy at Carnegie Mellon University, and a member of the Sloan Youth Violence Working Group at the John F. Kennedy School of Government at Harvard University. Dr. Martinez has also held fellowships from the Ford Foundation Postdoctoral Minority Fellowship Program, the American Sociological Association Minority Fellowship Program and The Ohio State University. He has received funding from the National Institute on Drug Abuse, National Science Foundation, NCOVR and the Harry Frank Guggenheim Foundation. He has published extensively in the area of ethnicity, homicide and violence research, including refereed articles in the journals International Migration Review, Social Science Quarterly, Homicide Studies, Social Forces, Hispanic Journal of Behavioral Sciences, Journal of Interpersonal Violence, Social Problems and a number of invited and refereed book chapters.