Mindy McCready's late boyfriend David Wilson's death was initially declared a suicide.  But now police insist that the cause of death has not yet been determined.

According to Taste Of Country,

"The National Enquirer is reporting that Cleburne County Sheriff Marty Moss has not yet made a final determination about Wilson’s cause of death.

“This is a very high-profile case and we need to make sure it’s investigated as thoroughly as possible,” Moss tells the tabloid. “It could take weeks for the state crime lab to complete tests on Mr. Wilson’s body, and if you’ll notice, it was Mindy McCready’s spokesperson — not anyone involved in the investigation — who made the determination that Mr. Wilson’s death was due to a self-inflicted gunshot wound.”

Evidently, David was having an affair for weeks leading up to his death. That's according to the U.K.'s Daily Mail.

McCready has not been charged with any crime, and authorities have not named her as a suspect. Nonetheless, the UK’s Daily Mail Online reports that McCready is under investigation for what authorities believe may be her role in Wilson’s death.

“David had been carrying on an affair for many weeks before the shooting,” an unidentified source claims. “When Mindy found out, it fueled a lot of very heated fights. The tension in their household became so unbearable that David packed up and left.”

The tabloid alleges that Wilson threatened to leave McCready on the day he died.  Read the whole story HERE.