"His initial modus operandi was to stalk middle-class neighborhoods at night in search of women who were alone in one-story homes, usually near a school, creek, trail, or other open space that would provide a quick escape."
Sacramento Is Up Tight Over Rapist and Threats". The Gettysburg Times. Associated Press. May 20, 1977. p. 24. Archived from the original on October 20, 2017. Retrieved March 22, 2017
This is a link to a YouTube video where I think we can see the doors to both Apartments #2 and #4 are on the south side of the Apartment building, not Apartments #1 and #3, as indicated on the report.
Above: Types of Ditches and Alleys DeAngelo used in previous attacks
From autopsy report: "Mrs. Darby ran from the room and got her daughter and ran from the residence to the next apartment complex where the subject's parents live"