An Arizona man accused of fatally shooting his estranged wife inside their Phoenix home has been denied a request to reduce his bond after prosecutors described details surrounding the killing as evidence of premeditation and ongoing danger.
Robert Marin, 60, is charged with first-degree murder in the death of his wife, Heather Marin, who authorities say was shot multiple times in March while the couple’s teenage daughter was present at the home.
According to court records and statements from family members, the daughter later attempted CPR on her mother while her father allegedly sat nearby smoking a cigar.
Hearing
During a recent bond hearing, Robert Marin sought a reduction to his current $2 million cash bond.
The request was denied.
Family members of Heather Marin opposed lowering the bond, arguing that Marin posed a continued risk to relatives and others connected to the case.
“He’s a danger to my family,” Aaron Cooley, Heather Marin’s brother, told local media before the hearing.
Cooley expressed concern that if the bond structure changed from cash-only to secured bond, Marin could potentially afford release.
Investigation
According to a probable cause affidavit, police believe the shooting occurred around 9:30 p.m. at the family’s Phoenix residence.
Investigators said tension had escalated earlier in the evening during an argument involving the couple’s daughter and the ongoing separation between Robert and Heather Marin.
Court documents state the daughter told investigators that her father had expressed hatred toward Heather Marin during the dispute.
The affidavit alleges Heather Marin later arrived at the home after speaking with her daughter by phone.
Police say she was then shot four times.
| Case Details | Information |
|---|---|
| Defendant | Robert Marin |
| Victim | Heather Marin |
| Charge | First-degree murder |
| Location | Phoenix, Arizona |
| Bond | $2 million cash |
Authorities allege Heather Marin pleaded for her life before being shot.
Scene
Investigators described finding Robert Marin in the garage when deputies arrived at the residence.
According to the affidavit, officers observed blood on his clothing and shoes. Police also recovered a firearm, spent shell casings, and a holster at the scene.
The affidavit states Marin dropped to his knees when deputies approached and was taken into custody without speaking.
Deputies also reported detecting a strong odor of alcohol during his transport to the Maricopa County Sheriff’s Office.
The family’s teenage daughter reportedly discovered her father in the garage after the shooting.
According to the affidavit, she yelled, “Why would you do this?!” after seeing the scene.
Police say Robert Marin allegedly responded by shrugging his shoulders.
Allegations
Family members and investigators claim Marin showed little effort to help Heather Marin after the shooting.
Aaron Cooley alleged that Robert Marin went into the garage, lit a cigar, and remained there while his daughter attempted CPR on her mother.
Investigators cited that alleged behavior as one factor supporting premeditation in the case.
The affidavit also referenced prior alleged domestic violence incidents.
According to police, the daughter described an earlier confrontation in February during which Robert Marin allegedly threatened to shoot Heather Marin before killing himself.
Authorities said the incident had not previously been reported to police.
Weapons
The daughter also told investigators that Robert Marin owned multiple firearms stored throughout the residence.
According to court documents, police were informed about unsecured pistols, hunting rifles, ammunition, and a gun safe located inside the home.
| Evidence Mentioned | Details |
|---|---|
| Firearms | Multiple guns allegedly inside home |
| Spent Casings | Found at scene |
| Holster | Recovered in garage |
| Alcohol | Odor reported by deputies |
Investigators continue reviewing evidence connected to the shooting.
Court
Robert Marin remains held in the Maricopa County Jail.
Under Arizona law, a first-degree murder charge can carry severe penalties, including life imprisonment if a defendant is convicted.
The case is expected to proceed through additional hearings as prosecutors continue presenting evidence gathered during the investigation.
Authorities have not publicly stated whether additional charges could be filed.
Family
The killing has deeply affected surviving family members, particularly the couple’s teenage daughter, who was present during the incident and reportedly attempted lifesaving efforts after the shooting.
Domestic violence advocates often note that separations and divorce proceedings can become periods of increased risk in abusive relationships, especially when firearms are involved.
As the criminal case moves forward, family members say they remain focused on seeking justice for Heather Marin while supporting the daughter who witnessed the aftermath of the shooting.
FAQs
Who is accused in the Phoenix murder case?
Robert Marin is charged with first-degree murder.
Who was the victim in the case?
The victim was Heather Marin.
Why was bond reduction denied?
The judge denied the request over safety concerns.
What did police find at the scene?
Police recovered a gun, casings, and blood evidence.
Where is Robert Marin being held?
He remains in the Maricopa County Jail.















