During Friday morning's preliminary hearing prosecutors laid out the case against the 23 year old Jenkins.  They say robbery was the motive for all four murders.

Prosecutors say evidence shows that in the Curtis Bradford murder on August 19, Erica Jenkins fired the first shot and her brother Nikko fired the shot that killed Bradford.  After Nikko shot Bradford, prosecutors say Erica complained that he took her "first kill" from her.

Testimony also revealed that Erica convinced her brother to steal the gold Traverse that Andrea Kruger was driving in the early morning hours of August 21. 

Prosecutors say Jenkins, her brother and two others made several around the McDonalds on 168th Street looking for vehicles to steal and that Nikko monitored traffic patterns to make sure they would be the vehicle in front of Kruger's.

Nikko Jenkins is charged with all four murders.