On November 20, 2018, 5:01 AM. Paul Caneiro, 51, stood outside his burning Ocean Township, New Jersey home with his wife and two daughters next to their white Porsche. A red gas can sat in the driveway. He told police he didn't know who would target his family. Seven hours later at 12:38 PM, his brother Keith Caneiro's mansion in nearby Colts Neck was on fire. Keith, 50, was shot dead on the lawn once in the back, four times in the head. Inside: his wife Jennifer, 45, shot and stabbed. Son Jesse, 11, stabbed multiple times. Daughter Sophia, 8, stabbed multiple times.Paul and Keith were business partners for 31 years. Best friends. Best men at each other's weddings. Keith owned 90% of their tech firm Square One, Paul owned 10%. They co-owned a pest control business equally. But in 2012, Paul was badly injured in a car accident. His personality changed. Prosecutors say he started stealing $11,000 per month for personal use. Keith discovered it. An indictment alleged Paul stole $75,000 total. A lawsuit claimed he took $90,000 from the kids' college fund.Keith wanted out. He was cutting off Paul's $225,000 salary. On November 19 at 7 PM, Keith emailed business associates: money was missing, he was stopping payments to Paul's wife. Seven hours later, surveillance captured Paul's Porsche leaving his home, returning at 4 AM. At 1:30 AM, Paul walked up to Keith's home security system, the cameras stopped. He claimed he'd turned it off for Wi-Fi issues, but it was hard-wired. At 3 AM, neighbors heard gunshots. Prosecutors say Paul killed Keith outside, then murdered Jennifer, Jesse and Sophia inside before setting a basement fire. He returned home and set his own house ablaze to make it look like both families were targeted.Police found bloody jeans and a latex glove in Paul's basement. DNA testing using STRmix software: Sophia's blood. The DNA was 2.7 septillion times more likely to be hers. They found a 9mm Sig Sauer with suppressor in Paul's car. If Keith's family died, Paul would get $1.5 million in life insurance.Paul was charged November 29, 2018 four murders, arson, weapons, theft, 16 counts total. He pleaded not guilty. Trial was delayed by COVID-19 and legal battles over DNA evidence and the seized security system. Both were allowed after New Jersey Supreme Court appeals. Trial began January 12, 2025. Paul's daughters testified he was distraught learning everyone died. Defense blamed a third brother who also stood to gain insurance money. On February 13, 2025, the jury deliberated 5 hours: guilty on all 15 counts. Paul showed no emotion. Jennifer's mother mouthed "Thank you" to the jury. Paul faces life without parole. Sentencing May 12, 2025.FAIR USE DISCLAIMER:This video is created for educational and commentary purposes under Fair Use (17 U.S.C. § 107). All footage, images, and audio clips are used solely for transformative critique, analysis, and public interest reporting. We do not own the rights to any copyrighted materials shown. All rights belong to their respective owners. No copyright infringement intended.⚠️ Contains discussion of child murders and graphic violence. Viewer discretion is advised.🔔 Subscribe to Beyond Guilty👍 Like to support our research💬 Should family members face harsher penalties? Comment belowPaul Caneiro, Keith Caneiro, Jennifer Caneiro, Jesse Caneiro, Sophia Caneiro, Colts Neck, Ocean Township, New Jersey mansion fire, family annihilator, STRmix DNA, true crime 2018, Beyond Guilty, True Crime, Brother Kill Brother, Abuse, Violence, Family Violence, Insurance, Insurance Fraud, Fraud