|Seen||"The Prince and the Rebel"|
|Relationships|| Patrick Jennings (brother)|
Margaret Gilpatrick (love interest)
John Tucker was an Irish Torontonian. In fact, "John Tucker" was an alias but his real name was never uncovered. Tucker and his brother were part of an Irish Republican Brotherhood plot to kidnap Prince Alfred in Toronto. To throw Detective William Murdoch off the trail of the plot, Jennings murdered Tucker. He was shot and then burned in an explosion.