Questions continue to mount after what appears to be a tragic accident at an East Bay UPS facility.

Shelma Reyna Guerrero was killed over the weekend while working at the Richmond facility.

Police said Guerrero was loading packages onto a cargo trailer when several packages fell onto her.

The 43-year-old was alone.

Investigators say, ultimately, a co-worker discovered her and called for help. But Reyna died at the scene.

Investigative Reporter Jaxon Van Derbeken examines the latest on the investigation into the incident. Watch his report in the video above.

See Full Page