Published: May 03, 2013 11:29 PM EDT

PHOENIX (AP) - Jurors began deliberations in Jodi Arias' murder trial on Friday after four months of testimony and closing arguments from both sides that presented far different scenarios of the killing and motivation, leaving the panel to come to grips with the dearth of evidence and Arias' ever-changing version of events.
    
The panel deliberated for just about an hour Friday before concluding for the day. Deliberations resume Monday.
    
Closing arguments wrapped up with Arias' lawyer imploring jurors to take an impartial view of his client, even if they don't like her, and prosecutors describing the defendant as a manipulative liar who meticulously planned the attack and is still lying.
    
"It's not about whether or not you like Jodi Arias. Nine days out of 10, I don't like Jodi Arias. ... But that doesn't matter," defense attorney Kirk Nurmi told jurors. Arias smiled as he made the remark, then returned to an unemotional gaze.
    
Arias says she killed her one-time boyfriend Travis Alexander in self-defense, but prosecutors say it was an act of premeditated first-degree murder that could carry a death sentence or life in prison.