What does the presence of a shoulder holster suggest about the individual sitting in a parked vehicle?

The presence of a shoulder holster indicates that the individual is likely armed. Shoulder holsters are specifically designed to be worn under a jacket or over a shirt, allowing for easy access to a firearm. This type of holster is commonly used by individuals who carry firearms as part of their duties or for personal defense.

While it's possible that law enforcement officers or security personnel may use shoulder holsters, the question is specifically about what the holster itself indicates regarding the individual's status. It strongly suggests that the person is armed, regardless of their profession. The mere presence of a holster alone does not confirm the individual's occupation; it merely implies their readiness to use a firearm. Therefore, concluding that the individual may be armed is the most direct and correct inference based on the presence of the shoulder holster.