- Riggs' suicide attempt in the first film.
- Rika's death in the second film.
- In the second film Riggs tells Trish about the night Vicki was killed in a car accident.
- It gets even worse when he finds out it wasn't an accident. She was murdered.
- The Purge of Riggs and Murtaugh's decently developed colleagues in the second movie, nearly all of whom die. There's several close-ups of children's toys in Shapiro's house before she gets blown up outside. Four such characters get blown up in one go at Cavanaugh's house. And Wyler is left ambushed and helpless, being taunted a bit and then shot through the head.
- Roger's Heroic BSoD in the third film after he found out one of the people shooting at him that he killed, was not only a teenager but his son's best friend.
- The scene at Murtaugh's boat. After Rianne visits Riggs telling him her father hasn't come home the past few days, Riggs decides to go see his partner at his boat, only to find his grizzled partner in a drunken stupor. Riggs tries to snap Murtaugh out of his depression saying that his family has been worried about him and that if Murtaugh didn't kill Daryl, both he and Riggs would be killed along with many others, but Murtaugh still won't listen. He further laments how he killed a youngling and that Riggs has no problem killing people since he himself has his own kill count and that he has ice in his veins, but then Riggs retorts by calling Murtaugh a selfish bastard. Riggs then brings up that whatever happens to Murtaugh happens to Riggs and that when Murtaugh retires, it'll be the end of not only Murtaugh's career but of their partnership, to which Murtaugh replies it's not his problem. Riggs then replies that Murtaugh is the only family he has and he's wondering what he's going to do without him. Murtaugh and Riggs go back and forth each other until Murtaugh starts breaking down, realizing he doesn't know what he's saying or thinking anymore. Murtaugh then apologizes and tells Riggs that he didn't realize that him retiring would screw him up.
- Daryl's funeral. Watching his parents and grandparents having to bury their teenage son and Murtaugh at a loss when he tries to express his condolences... something no one should have to or would want to go through.
- The death of the rookie who'd been friends with Riggs, on his birthday.
- From near the end of the fourth movie - "Riggs? RIIIIIGGS?"
- The death of Hong, killed off just so his uncle can keep working on the counterfeit money. Then later we find out Hong's uncle was killed after finishing his job. Two old men who just wanted their family to have a better life in America, and pay the price for it.
- Sure they're both murderous remorseless Triad sonsabitches, but one does feel a twinge for Wah Sing when his brother Michael gets killed with a bullet meant for him. All this unstoppable badass can do is watch him die, anguished look on his face. By the time he challenges Riggs and Murtaugh to their Final Battle, he clearly doesn't care about anything other than avenging his brother, even if that means dying in the process.
Tear Jerker / Lethal Weapon