The axe fell on the local Kansas City attorney representing the parents of missing baby Lisa Irwin because of friction with the lead attorney from New York.
"Tacopina and I were not able to work as a team," attorney Cyndy Short told the network. "Our goals and our approaches are so different that one of us had to go."
In her time on the case, Short represented Deborah Bradley, 25 and Jeremy Irwin 29 for free. Irwin claims he came home late at night to find that someone had broken into their home and kidnapped Lisa, then 10 months old.
Police have not named any suspects in the case, but they are critical of Lisa's parents, describing them as uncooperative. Last week, cops expected to interview Lisa's brothers, but the parents nixed the appointment.
Bradley -- who is now avoiding the media spotlight -- previously admitted that she got drunk the night Lisa was allegedly kidnapped.
On "Good Morning America," Tacopina urged police to investigate an alleged mystery man seen walking with a baby near the Irwin-Bradley house the night Lisa vanished.
Witnesses called police to say they were suspicious of the man. Surveillance footage emerged later of a man emerging from a wooded area in the middle of the night that added speculation to the mystery man theory.