Jeremy Arrington went on the killing spree because of a comment on Facebook.
After a 10-day trial, Arrington was convicted on a slew of charges including three counts of murder.
Prosecutors say he stabbed a 7-year-old girl and her 11-year-old brother to death, and then fatally shot 23-year-old Syasia McBurroughs after breaking into their apartment, tying them up, and torturing them.
A 29-year-old woman and 13-year-old twins survived because a girl with autism who was with them escaped the home and called for help.
Arrington will be sentenced on April 8th.
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