“…Research on serial murder still remains limited due to its rare occurrence and difficulty in obtaining access to offenders [1,2,6,13,[15][16][17]. In addition to these obstacles and despite the proliferation of terms used to define multicide (i.e., mass murder, sexual/lust murder, spree murder, serial murder), there remains debate over the "true" definition of serial murder, which varies along a continuum of very broad to very specific [1,3,4,[6][7][8][9]11,13,15,[18][19][20][21][22][23][24][25][26][27]. Definitions vary with minimum number of victims (i.e., 2 to 4), varying cooling-off periods (i.e., time between murders), and various necessary motivations [3,4,[7][8][9]11,13,15,[17][18][19][21][22][23][24][25][26][27].…”