Table 1

Temporal Patterns in Serial Sexual Homicide

Type of Offender^*	n	Mean^†	Range	SD
Rapid sequence homicides only	6	3.58	1.1–9.30	3.04
Rapid sequence homicides with clusters	13	6.48	1.0–14.0	4.16
(Homicides outside of rapid sequence cluster)		318.50	31–1,148	359.02
Non–rapid-sequence homicides	25	1,054^‡	22–10,270	2,117.00

↵* Total number of offenders, 44.
↵† Mean days between homicides.
↵‡ Given the wide range and standard deviation in this group, the median of 353.75 days is provided as another measure of central tendency.