Rebecca Felix Soto, 38, was found dead in Tucson, Arizona, in the early morning of September 5, 2021. Police were called to a residence about 1 a.m. for reports of unknown trouble; Soto was located near railroad tracks with evident signs of trauma and was pronounced dead at the scene.

Investigators say the violence began after an argument at a home on East Palmdale Street involving Anthony Salcido Jr., 31. Witnesses reported hearing gunshots, and officers learned Salcido Jr. fled before police arrived. A witness later saw Salcido Jr. and his father, Anthony Salcido Sr., 53, pushing a wheelbarrow that appeared to contain a body; the men returned without the wheelbarrow and initially said they were throwing out trash. That witness then discovered Soto’s body and alerted police.

Both men were detained around 3 a.m. and charged. Authorities reported a possible retaliatory motive, with Salcido Sr. saying he and his son believed Soto had arranged for Salcido Jr. to be robbed. Does anyone have information about Rebecca, her last known movements, or the events on East Palmdale Street that night?