Give them both lie detector tests along with sleeping beauty in the back seat.
And about sleeping beauty:
“Police sources identified the officer in Polancos car as 29-year-old Vanessa Rodriguez. She was waving her police ID out the window just before the shooting, sources said.”
http://www.nydailynews.com/news/crime/man-shot-police-laguardia-airport-article-1.1174664
How was she sleeping and waving her ID out the window at the same time and just before the shooting???
The cover-up started right there.