joseph james d'angelo junior, a retired police officer, pled guilty in 2020 to the crimes most of which were in sacramento county d'angelo junior did commit some crimes in the bay area, including in concord, san jose, san ramon, walnut creek and danville. angela junior was convicted of the crimes through dna technology. and lastly, the night stalker who killed at least 15 people over the course of 14 months in the 1980's, richard ramirez was convicted in those killings which were mostly in los angeles. but 2 of his victims were killed in san francisco's ingles side neighborhood, ballistic and shoe print evidence from the murders match ramirez, his crimes. he was captured in august of 1985. and spent a lot of time at san quentin. there are other no notable serial killings in the bay area, including the santa rosa hitchhiker killer who murdered 7 female hitchhikers and the unabomber who planted explosives that killed 3 people and injured. 23, others. >> in merced said county deputies have arrested a person of interest in the kidnapping case of a family, including a baby. authorities say d