He then earned a master's degree from Medill School of Journalism at Northwestern University.
[1] Threlkeld held positions at WHAS-TV in Louisville, Kentucky, and WMT-TV in Cedar Rapids, Iowa.
Threlkeld went to ABC News in 1982 and was given the special assignment of filing a weekly Status Report segment for World News Tonight, which sought to give a deeper perspective to the week's most important story.
[2] In that role, he reported on the Falklands War, the invasion of Lebanon and many other domestic and international issues.
In the United States he covered such stories as the Robert F. Kennedy assassination and the Patty Hearst kidnapping, as well as numerous political campaigns.