"I couldn't keep my stories straight."

That's what Jodi Arias admitted under intense cross-examination Wednesday during her first-degree murder trial as veteran prosecutor Juan Martinez, repeatedly exposed her lies and appeared to make progress in proving  premeditated murder in order to seal the 32-year-old’s fate with the death penalty.

Martinez meticulously presented evidence that Travis Alexander‘s violent killing was planned, and not as Arias has claimed  a desperate attempt to escape an attack from him.