Ryan Haldeman, 28, was fatally stabbed in the early morning hours of a cold Friday in November 2012 in the Capitol Hill neighborhood of Denver. He had been at the Pub on Penn on the 1300 block of Pennsylvania Street and was found with multiple sharp-force injuries at about 2:17 a.m.; he died after being taken to a nearby hospital.

Friends and family remember him as peaceful and benevolent, someone who worked with children and created music.The Denver Police Department investigated and appealed for leads. Witnesses gave a vague description of a suspect seen fleeing northwest from the scene: a Black male about six feet tall, roughly 180 pounds, dark complexion, salt-and-pepper stubble, aged about 20 to 45, wearing a blue or black coat and white pants.

A motive was never publicly established and no arrests have been announced, leaving the case cold.Are there readers who knew Ryan or who were in Capitol Hill that night and can share what they remember?