A man has been taken into custody after allegedly stabbing his mother-in-law to death and injuring his brother-in-law before starting a fire in Queens on Thursday, according to police.
NewsCopter 7 was over the scene at a multi-family home located at 45-18 Smart St. between 45th Avenue and Holly Avenue in Flushing.
Officials received a call just before 4 p.m. for reports of a person stabbed at the location, and a fire…