nyia parler , 41 , was taken into custody by authorities in montgomery county , maryland overnight saturday on charges including aggravated assault , simple assault and neglect of a care-dependent person .
police say she traveled to maryland from pennsylvania either last sunday or monday after leaving her 21-year-old wheelchair-bound son in a wooded park with nothing but a blanket and a bible .
parler 's son , who has not been identified , would have died if he had not been spotted by people walking on a nearby road .