Arson and alleged fratricide in New Jersey. New 911 calls in Microsoft employee murder. And sentencing murderers.

A New Jersey man accused of murdering his brother and his brother's entire family, then setting fire to both their homes to cover up his crimes, wants out of jail after seven years waiting for trial. In Florida, prosecutors release all-new evidence to the public as they build their case against a couple they say orchestrated a hit on Microsoft employee Jared Bridegan. Updates on Chad Daybell and his jailhouse letters, and the sentencing of Brooks Houck, the convicted killer of Kentucky mom Crystal Rogers. Plus, why sentencing a murderer is harder than you'd think. Find out more about the cases covered each week here: www.datelinetruecrimeweekly.com To learn more about Dateline LIVE in Nashville on Sept. 28, and to get tickets, go here: https://www.nbcnews.com/dateline-event