Martin Ruben Ellison was 24 when he was shot to death in Scottsdale, Arizona, on the evening of November 9, 2015. Described as a hardworking young man who balanced three jobs, he was remembered for his smile, bear hugs, love of music and close ties to a large family.

The shooting at a Scottsdale apartment complex also killed 23-year-old Keaton Litke. The Scottsdale Police Department later arrested 20-year-old Michael Aston and a juvenile male on felony charges including homicide in connection with the double killing.

What details about that night or the people involved might help fill gaps in the timeline or explain how two young lives were lost in a single violent incident?