Oh dear! I'm so sorry you've had or deal with incense for months. That stuff gives me a headache!
No, I've never seen that show but I'm not surprised to hear of neighbor conflicts escalating to murder. I seethed with anger when their dog would keep me up at night or woke up my baby. I resented the neighbor's thoughtlessness, his refusal to consider putting his dog indoors, and his cavalier attitude about how his dog was impacting the entire neighborhood.
The fact that he got away with it for years before we arrived emboldened him and only made me angrier. I hate bullies and I saw him as someone who thought he could get away with it because no one else would stand up to him.
Thankfully, we moved before I started having murderous thoughts!