-
before killing them.
-
Which means he's deliberate and patient.
-
This guy has a vivid imagination.
-
The costumes and makeup suggest that he's a history buff,
-
or he may be a fan of Shakespeare.
-
Using nicotine as a poison is highly unusual,
-
so he's either very well-read
-
or under the guidance of another.
-
His interests and delusions
-
have caused him to become isolated socially.
-
He can appear normal to his potential targets,
-
and his crimes are not driven by sex or greed,