Giant Roam 2 Disc

What happened

There was an unlocked bike located exactly where my bike had previously been minutes before, so I'd assume someone biked by, saw the bike and stole it, then left the bike that they arrived on?

Bike details

Type
Mountain Bike
Color
Gray with red accents
Size
29 inch wheel, large
Condition
Mostly like new, left pedal is missing one of the two inner prongs, gears and brake discs are kind of rusty, there's a removable water bottle holder in the middle of the frame, a phone mount on the top handlebars in the middle, and two little rubber LEDs one mounted to the front handlebars and one under the rear seat.

Theft circumstances

Date
Nov 8, 2020
Lock type
Combination Cable Lock
Locked to
Locked to bike rack.
How locked
Only the frame was locked a solid object.
How defeated
Lock is missing, along with the bike.
Duration
20 minutes
Area
Sidewalk in front of an open business.