Answer:
In this particular scenario, the best way to go is with all possible options.
Explanation:
First option:
If you find yourself to be in a public space try to find any authority figure such as a police officer, security guard, and so on.
Second option: If security or authority figures are not available try to help the person by asking other people to help you. Inform others about what is happening and assemble a team in order to help the person in need.
Third option: While trying to help, make sure that you call an emergency number.
