Shortly after 2:20 a.m. on July 22, 2014, a reported home invasion on Merritt Avenue in the Carrick neighborhood of Pittsburgh ended with one man dead. Two men, identified as 31-year-old David Calhoun and 27-year-old Christopher Thomas, allegedly forced entry into an apartment occupied by a 19-year-old man and his 17-year-old female roommate. The intruders reportedly fired a shot through the apartment door and demanded the male resident’s belongings.

The 19-year-old retrieved a shotgun and fired at the intruders. Calhoun was struck and died at the scene; Thomas was wounded, fled, and collapsed outside. Police initially detained the apartment resident for questioning but later determined he had acted in self-defense and released him without charges. After recovering, Thomas was arrested and charged with attempted homicide, robbery, and conspiracy in connection with the invasion that resulted in David Calhoun’s death.

Are there witnesses or neighbors who remember sounds or activity in that Carrick block the morning of July 22, 2014?