Authorities have charged a man who allegedly fatally stabbed his mother-in-law, injured his 17-year-old brother-in-law and set fire to their shared home in Queens.

Weisheng Chen, 27, who was arrested and charged late Friday night, faces several charges, including murder, criminal weapons possession, arson and assault.

Police took Chen into custody after the incident on Thursday afternoon . The NYPD said officers responded to a 911 call about an assault at the home on Smart Street in Flushing, and saw the home was on fire when they arrived. After extinguishing the blaze, they said, first responders discovered Shi Qiujin, 50, who had been stabbed in her abdomen and was unconscious and unresponsive. They said they also found Chen’s teenage brother-in-law, who had multiple stab wounds.

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