This is heartbreaking.
NYPD Officer Rafael Ramos is one of the men who was murdered on Saturday in Brooklyn, and he sadly left behind his 13-year-old son Jaden Ramos.
Following the horrible shooting, Jaden posted a message to his Facebook, saying:
Aw! Sienna Miller looks down in the dumps!
She looks like she needs some cheering up! And when it comes to comfort, mum's the word!
The Factory Girl star was spotted holding hands with her mother Jo for a walk around Central Park on Wednesday.
Ch-ch-check out the pics (below) to see Sienna go from being bummed out to being mummed out!
We wonder what she's upset about! Maybe she's just homesick for her London flat!
[Image via Ramey Pix.]