(Vancouver, WA)  --  Bail is set at 500-thousand dollars for a 28-year-old man accused of stabbing his mother multiple times in Vancouver.  Brian Toombs appeared yesterday in court, where prosecutors said he was diagnosed with schizophrenia and had not been taking his medications.  Police say Toombs admitted to stabbing his 57-year-old mother Sonya multiple times in the face and neck Friday on Southeast Angus Street.  She remains hospitalized in critical condition.  Police say Brian called 9-1-1 following the stabbing to report himself.