Krasin and Grigoriev purchased from a private person

Krasin and Grigoryev purchased from a private individual a gas spray with tear gas. In the evening of the same day they stopped the car. Krasin directed a stream of gas into the driver’s face, and Grigoriev took the money and driver’s license. The next day, Krasin and Grigoriev, calling Vodyannikova’s apartment, used a gas canister and stole valuables. When leaving, they closed the mistress in the bathroom, where she was before her husband arrived.
Qualify the actions of these individuals.