The actor knows that his actions will lead to the death of others, and deliberately hopes or lets this happen. Intention is divided into direct intention and indirect intention.
Direct intention refers to the psychological attitude of the actor who knows that his behavior will inevitably or may have harmful consequences to society, hopes that harmful consequences will occur, and knows that harmful consequences will inevitably occur and let them happen. It can be divided into two situations, knowing that it is possible and knowing that it is inevitable.
Indirect intention refers to the psychological attitude of the actor who knows that his behavior may produce harmful results to society and let such results happen. The so-called laissez-faire means that although the actor has no hope and actively pursues the occurrence of harmful results, he has not stopped or opposed it, but let it happen and develop.
Indirect intention includes three situations: (1) letting harmful results happen in pursuit of legitimate purposes; (2) In order to pursue an illegal purpose, let another result that harms society happen; (3) reckless stabbing in an emergency.
Therefore, if you want to know whether this person intentionally kills people, you must first know whether he already knows the consequences of doing so. Many times he won't know, because he will think: demon! It's hard to get dizzy after the old shrimp (gee, the old man is already like this, and it's okay to get dizzy). I hope I can help you, thank you!