Authorities say that country music star Mindy McCready shot her dead boyfriend's dog on Sunday before using the gun to take her own life in Arkansas.

Cleburne County Sheriff Marty Moss on Monday said that the troubled star's body was found next to David Wilson's dog. Wilson, who had been a record producer and McCready's boyfriend, was found dead after apparently committing suicide last month.

Moss said that the official cause of McCready's death had not been released but "all indicators" pointed to suicide.

A Judge had ordered McCready to a rehab facility for alcohol and mental issues earlier this month, but managed to leave after just 18 hours. Her two sons, 6-year-old Zander and 9-month-old Zayne, were put into foster care when McCready was admitted to the treatment facility.

The country music star had publicly battled substance abuse and mental illness since being placed on three years' probation over illegally obtaining OxyContin in 2004. The next year, she was arrested for drunken driving, suffered two overdoses, was arrested on drug charges and then attempted suicide.

After a second suicide attempt in 2008 and overdosing again in 2010, she agreed to appear on VH1's Celebrity Rehab with Dr. Drew.

McCready is the fifth celebrity to die after joining the cast of Dr. Drew Pinsky's show.

Watch this video from Fox News, broadcast Feb. 17, 2013.