The video, which was taken by Kansas City news station KMBC, shows the suspected gunman after he was taken into custody in the parking lot of an elementary school near the scene of the attacks at the Jewish Community Center and the Village Shalom assisted living center.
From the back of the police cruiser, Cross shouted what sounded like "Heil Hitler!"
Overland Park Police Chief John Douglass said he could not clarify what the suspect was shouting, and stressed that it was "too early" to label the shootings a hate crime.
"We're investigating it as a hate crime, we're investigating it as a criminal act, we haven't ruled out anything," Douglass said.
WATCH THE VIDEO ABOVE.
This story was updated with the full name of the suspect.