He should have acted decisively, called the chief of police, his friend, and had the tenants thrown into jail. What kind of person of property would ever be stupid enough to keep sending servants and finally his own son to get killed. Here is the owner who acts like a long-suffering fool, like a spouse who stays in a marriage even when physical abuse is piled on physical abuse. It should have been clear to him that the tenants were not going to act in any other way than violence. So the story Jesus tells ends without any real conclusion.
Nothing is resolved.
The owner hasn t gotten any fruit from his vineyard. He has lost a lot, including part of his own flesh and blood. It is left unanswered whether they will get the inheritance. All the parables that Jesus seems to tell in these last few days of his life are heavy with judgment. Most parables in the Bible about vineyards are about judgment.