The story of Mischa Barton's breakdown last month just keeps getting sadder.
On Thursday, TMZ shared audio from the 911 call a neighbor made on her behalf after watching her have a meltdown in her backyard.
"My back downstairs neighbor is hysterically crying and saying she's going to kill herself," the caller says.
The caller added, "It's all nonsensical, but I'm very concerned. They go see her at least every couple of months 'cuz she loses it."
It seems the 911 caller may have been the same person who shot video of Barton's breakdown, since that was filmed by someone whose windows overlook Barton's yard.