Have you ever carried around big gas cans? It's not exactly easy.
Jodi Arias claims she took 2 5-gallon containers with her on a road trip after her boyfriend's death. And the prosecution says, that means pre-meditation.
And coincidentally she borrowed them from ANOTHER former boyfriend. Arias admits to killing Travis Alexander, but says it was self-defense.
HLN's own Mike Galanos did a little demo for us. Don't forget to tune in to HLN everyday for gavel to gavel coverage of the Jodi Arias trial.