For the first time since their convictions, we are hearing first hand from Nathaniel Gann and Brae Hansen. It was a little more than a month ago that the two were found guilty of plotting to kill their stepfather Timothy MacNeil. Now, they're speaking out.

Was Timothy MacNeil's murder a crime created by greedy siblings to kill their stepdad? Or, was one set up by the other? And who is telling the truth and who is lying? On Saturday Night's 48 Hours, we'll hear from both brother and sister for the first time from jail.

In dueling jailhouse interviews, with 48 Hours correspondent Tracy Smith, convicted killers Hansen and Gann don't hold back.

Just weeks ago, a jury found 19-year-old Hansen guilty of first degree murder with a special circumstance of lying in wait for the July 2007 shooting death of her stepfather Timothy MacNeil in his Rolondo home.

She faces life in prison without parole June 22.

Her 20-year-old brother, Gann, was also convicted of first degree murder by a different jury. He faces 25 years to life in prison at a June 19 hearing.

See more of what each sibling has to say Saturday at 10 p.m. right here on CBS 8.