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Justin and Amber Hicks were found slain in their home by Justin's father in November 2021

Matthew Lanz was arrested on several charges, including murder

Matthew Lanz's brother Austin had broken into the same property in the past, and died by suicide after killing a police officer earlier in 2021

A Georgia man has been sentenced for killing a firefighter and his wife as their toddler slept upstairs.

Justin and Amber Hicks were found slain in their Acworth, Ga. home in November 2021, according to a criminal warrant reviewed by PEOPLE.

The couple's neighbor Matthew Scott Lanz was arrested on several charges including murder, per the warrant. He was found guilty on all counts in a bench trial last week, according to online court documents reviewed by PEOPLE.

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