Bruce Blackwood, 55, was last seen in Queens, New York, on March 4, 2006. He called in sick to his job at O’Neill’s Restaurant in Maspeth that day, saying he had slipped in the bathtub and injured his head; that was the last time anyone heard from him. His Cadillac SRX was later found parked in front of a building he owned in Bushwick, Brooklyn.

Investigators early on focused on a handyman Blackwood had hired, Luis Perez, who had been living in the building during renovations. Blackwood discovered Perez had stolen his checkbook and cashed $7,700 in checks, and the two had a loud argument about money a few days before the disappearance. Perez later claimed Blackwood left in a black car with a man named Mike and had given Perez the Cadillac keys, a story Blackwood’s family found implausible.

Three and a half months after Blackwood disappeared, Perez was charged and later convicted only on the check-cashing scheme. Years later Perez’s daughter Irene provided secretly recorded conversations in which Perez admitted killing and dismembering Blackwood and described disposing of the remains. Based on those recordings, Perez was charged with murder in 2011 and convicted of second-degree murder in September 2015. No body was ever recovered.

Did anyone in the neighborhood around Hancock Street or Bushwick notice unusual activity in March 2006 that might still be relevant?