Dale Hausner and Samuel Dieteman

On June 19, 2013, Hausner was found unresponsive in his cell and died later that day. His autopsy revealed no physical trauma. The medical examiner determined that he had killed himself with an overdose of an anti-depressant.

Hausner was charged with 88 crimes in 5 different indictments attributed to the serial shooter investigation, including 8 murders, 18 attempted murders, 17 aggravated assaults, 26 drive-by shootings, 4 firearms charges, 10 cruelty to animals charges and 2 arson of an occupied structure charges. Hausner was convicted on 6 of 8 murders, and 80 charges overall on March 13, 2009.

On March 27, 2009, Hausner was sentenced to six death sentences. Hausner had instructed his attorneys not to oppose a death sentence, saying his execution would help the victims' families heal. After a mandatory appeal, Hausner waived further appeals and requested to be put to death "as soon as possible." During Hausner's half-hour statement to the jury before sentencing, he apologized to several people including his family and compared himself to Charles Manson.

Claudia Gutierrez-Cruz (20) shot and killed by Dieteman on May 2, 2006, as Hausner drove in Scottsdale, Arizona.

The serial shooters' last crime occurred July 30, 2006 in Mesa, Arizona. According to police, Robin Blasnek (22) was shot and killed at approximately 11:15 p.m. while walking from her parents' house to a friend's house after having an argument with her boyfriend. On August 3, Phoenix police released a statement linking Blasnek's murder to the serial shooter, citing forensic evidence and other similarities to the serial shooter's past crimes.

Prior to that, they shot pedestrians, cyclists, dogs, and horses. Phoenix police originally believed that the serial shooter was a single individual responsible for 4 murders and 25 shootings beginning in May 2005, and that a series of 13 shootings in the same area were the work of another offender. However, on July 11, 2006, investigators revealed that they believed the two series of shootings were related.

Tips identified Hausner and Dieteman as suspects on July 31, 2006. The most important tip came from Ron Horton, a friend of Dieteman, who said Dieteman had confessed to involvement in the shootings while drinking. Horton was at first uncertain whether Dieteman's confession was serious, but went to police after the shooting death of Robin Blasnek, which he said "affected me quite a bit" due to a belief Horton might have prevented her death had he contacted police earlier.

On August 3, 2006, police arrested both suspects outside of their apartment in Mesa. On the morning of August 4, 2006, Phoenix police announced that two arrests had been made in connection with the serial shooter. Authorities said they also linked Hausner and Dieteman to two arson fires at Wal-Mart stores on June 8 in Glendale, Arizona, started 45 minutes apart from each other that caused approximately $7 to $10 million in damages.

Dale Hausner and Samuel Dieteman were a duo of serial killers, arsonists and thrill killers who committed several drive-by shootings and arson in Phoenix, Arizona, between May 2005 and August 2006. They targeted random pedestrians and animals, mostly doing so while under the influence of methamphetamine, and also set fire to multiple objects. Investigations of their crimes coincided with the search for the Baseline Killer, who was also committing random murders and sexual assaults in the Phoenix area.

David Estrada (20) shot to death on June 29, 2005 in Tolleson, Arizona.

Nathaniel Shoffner (44) murdered on November 11, 2005 while attempting to protect a dog from being shot.

Jose Ortiz (44) and Marco Carillo (28) were murdered on December 29, 2005.

Although Hausner was convicted for murdering six people, he is suspected to have killed two more people in 2005:

Tony Mendez (39) was shot to death on May 17, 2005.

Reginald Remillard (56) was shot to death on May 24, 2005.