Some people believe a short deliberation time means a guilty verdict and a longer deliberation means the jury -- or at least one juror -- thinks the defendant is not guilty. But take a look at how long it took jurors to decide these cases:
In less than three hours, a Texas jury found Eddie Ray Routh guilty of capital murder in the deaths of Chris Kyle and Chad Littlefield.
After 16 1/2 hours, jurors found George Zimmerman not guilty of second-degree murder in the death of Trayvon Martin.
Jurors took nearly 15 hours to find Jodi Arias guilty of first-degree murder in the death of her ex-boyfriend Travis Alexander.
Casey Anthony was acquitted of first-degree murder in the death of her 2-year-old daughter, Caylee. The jury deliberated 10 hours and 40 minutes.
Jerry Sandusky was found guilty of 45 of 48 counts of child sex abuse after a jury deliberated for more than 20 hours over two days.
After almost 14 hours, jurors found Drew Peterson guilty in the death of fourth wife, Kathleen Savio.
The jury in the Conrad Murray trial found him guilty of involuntary manslaughter in the death of Michael Jackson after about nine hours of jury deliberations.
In 1995, O.J. Simpson was acquitted of two counts of murder in the deaths of his wife, Nicole Brown Simpson and her friend Ronald Goldman. Jurors deliberated for less than four hours.
Jurors from the second Phil Spector trial deliberated for 30 hours and convicted him of second-degree murder in the death of Lana Clarkson.
After 35 hours of deliberations, stretched out over nine days, jurors acquitted Robert Blake of first-degree murder in his wife's death.
Scott Peterson was convicted of first-degree and second-degree murder for killing his wife and their unborn child. The jury deliberated for seven days.
After four days of deliberations, the Menendez brothers were convicted of two counts of first-degree murder for killing their parents.
Steven Hayes was convicted of capital murder in the deaths of three members of the Petit family. The jury deliberated four hours.