Drug Enforcement Administration Special Agent Kenneth G. McCullough was killed on April 19, 1995, when a car bomb exploded outside the Alfred P. Murrah Federal Building in Oklahoma City, Oklahoma. Special Agent McCullough had 13 years of federal service and had been assigned to the Oklahoma City Resident Office since 1990. He was 36 years of age at the time of his death.

Special Agent McCullough received a bachelor's degree from Texas A&M University in 1980 and a master's degree in public administration from Webster University in Webster Groves, Missouri, in 1986. Special Agent McCullough previously served in the U.S. Army and attained the rank of captain. His civilian government service began with the Defense Investigative Service in St. Louis, Missouri, in November 1987. Special Agent McCullough joined DEA on February 4, 1990, and, after completing Basic Agent Training, was assigned to the Oklahoma City Resident Office.

His wife, Sharon, characterized Special Agent McCullough’s greatest quality as honor and recounted how he told his son that "if you have no honor, you have nothing. Honor is the only thing that cannot be taken away from you."

In addition to his wife, Sharon K., Special Agent McCullough was survived by one daughter, Jessica, and one son, Patrick.