PHOENIX (KSAZ) - UPDATE: Police have released two composite sketches of a suspect believed to be involved in a string of murders in a west Phoenix neighborhood.
Phoenix police say most of the shootings happened in a Maryvale neighborhood and began on March 17.
In total, seven people have been killed in eight shooting incidents.
All of the serial shooting incidents are listed below:
"Someone out there knows who did this," Phoenix Police Chief Joseph Yahner said. "We need our community to call us or Silent Witness and help us solve these cases, bring justice to these families and victims, and prevent more violence from occurring."
The newly hired Phoenix Police Chief who will take over for Yahner later this year, Jeri Williams, echoed Yahner's statement. "We need the help and assistance of the community. We cannot be the eyes and ears all the time and to the suspect, we will find you."
A reward of $30,000 for information leading to the arrest of the suspect.
If you have any information, please call Silent Witness at 480-WITNESS. You can remain anonymous.