Devastating last page/s (short, mostly BL)

Non BL
Wars destroy many things, and ultimately, he lost everything to them.
Tragedy
Tearjerker

Oneshot ch.4
Story of the boy who's often kidnapped by aliens. DO NOT READ THE COMMENTS SECTION FIRST (SPOILERfull)
Sad ending
Tearjerker

Tale ch.23, p.26-79 (Non BL)
After his parents die victims of a bombing from american soldiers, a young Islamic boy joins a terrorist group to pay for his ill sister's surgery.
Tragedy
Tearjerker

Oneshot ch.4
A spitting image of his deceased boyfriend named Sakurai san, this shocked Arthur that a guy with similar face with his ex-boyfriend would appear to him.
Tragedy
Tearjerker

Summary from @Morcheeba
A little take on "selfish Love" or rather: which is more important - that your loved one is happy or that YOU made him happy?
No happy ending
Tearjerker

Oneshot Ch.6
Kiji is paid a visit by the ghost of Osaka, from the day he died. This is a sad, poignant story about two men who never found it in themselves to confess to each other until it was too late.
Tragedy
Tearjerker

Oneshot Ch.6
Sequence of testimonies from the few that once mattered to him. "They were so kind to me it's unforgettable. "
Tragedy
Tearjerker

Oneshot Ch.1
After his girlfriend was murdered, Takashi brings the killer, Kouichi, back to his apartment in order to carry out an unprecedented form of "revenge". By treating the man he should hate gently, what does he hope to accomplish?
Tragedy
Tearjerker

Two-shots Ch.5 and 7
Two friends who keep missing the chance to learn each other's thoughts.
No happy ending
Tearjerker

Oneshot ch.2
[from KeraQ] Sad story about a man who wanted to forget his unrequited love by becoming a zombie so that he could forget him.
No happy ending and eventually tragedy
Tearjerker