MOSCOW, Idaho -

Charles Capone, the estranged husband of Rachael Anderson, and David Stone, a friend of Capone's, were charged Wednesday morning in Latah County with her murder in April 2010.

Anderson was last seen in Moscow, Idaho on April 16, 2010. Police have long believed she was murdered and Capone has long been considered a prime suspect in her disappearance.

In addition to being charged with 1st Degree Murder, Capone has also been charged with conspiracy to commit murder, failure to notify a coroner or law enforcement officer of a death and conspiracy to commit failure to notify a coroner or law enforcement officer of a death.

Stone is facing the same charges for aiding Capone in Anderson's killing.

The Case Against Capone and Stone

According to court documents, just before 7 p.m. on April 16, Anderson spoke to Captain Dan Hally with the Asotin County Sheriff's Office regarding an ongoing stalking case involving Capone. Hally advised Anderson not to confront Caopone personally, after she said she was going to tell Capone she was following through with the divorce. Hally told her not to contact him in person because Capone could get violent toward her.

Unfortunately Anderson was already at Palouse Multiple Services, Capone's business, where he was doing some work on her vehicle. She was waiting for him outside the business in a borrowed GMC Yukon, which she had been driving while Capone worked on her vehicle.

The last time anyone heard from her was when she contacted one of her ex-husbands an hour later, telling him that she needed to talk to him about something. He tried to call her back but the calls dropped straight to voice mail. It was the last outgoing call from her cell phone.

Six days later, on April 22, a search warrant was executed at Capone's business, where investigators noticed two tarps covering equipment, an older one that was older and had overspray on it from painting, and a newer green and brown tarp that the investigation later revealed had been purchased at a hardware store the day after Anderson had disappeared. A witness reported seeing an older green tarp with overspray on it before April 16.

According to authorities Stone, a worker for the City of Moscow, asked to be taught how to use a backhoe at the Moscow City Maintenance shop during the first week of April, 2010, telling co-workers he had to "help a buddy with a project." He subsequently practiced digging a hole, and when he was told to fill the hole back in reportedly quipped that he was going to "bury them in the spoils pile."

On April 29 the Clearwater County Sheriff's Office Search and Rescue dog handler accompanied Lewiston police officers to the storage building where the GMC Yukon, which had been found several days into the investigation of Anderson's disappearance, was being stored. A cadaver dog walked around the Yukon with the handler and gave an indicator on the rear doors of the vehicle. When the doors were opened the dog jumped inside and laid down in the back of the SUV, the dog's behavior indicating that at some point human decomposition was inside the rear of the vehicle.

In May of 2010, investigators spoke with another individual, Christopher Porter, who said he had been approached by Stone who asked him to kill his wife for $10,000. Stone mentioned his wife had a large insurance policy at the time. Porter declined. In March 2010, a month before Anderson's disappearance, Stone told Porter that he and Capone had come up with plans to kill each others' wives.

The investigators also received a report back from the Idaho State Police in May, detailing the presence of human blood found on items found inside the Yukon. In December, following requests for DNA samples taken from both Capone and Stone, the lab confirmed the presence of both Capone's and Anderson's DNA found on a tip of a black latex glove found in the Yukon. During a previous search of Capone's truck a box of latex gloves was found, the gloves matching the glove tip that was found inside the Yukon.

Among the numerous items seized as evidence from Capone was a prescription bottle of Ambien in his shop that belonged to the wife of Robert Bogden. Bogden's wife told investigators she never gave Capone a bottle of her medication but had in fact given him one or two pills to help him sleep. Capone later approached Bogden and told him police took a bottle of his wife's Ambien from his shop. During that meeting Capone reportedly told Bogden that police would only see what they wanted to, and that "they think I put sleeping pills in her beer."

At that point, however, no one in the investigation had said anything to anyone about the possibility that Capone had put any drugs in Anderson's beer.

Capt. Hally and ATF Agent Lance Hart met with Capone in May, and during that conversation Capone said he would tell investigators that he would lead detectives to his estranged wife's body, but only if he would be allowed to stay out of police custody. The request denied, Capone stopped cooperating and declined to provide any additional information to authorities.

Discussions in Jail

Over the next several years, while being held in jail, Capone spoke with several inmates about his estranged wife's disappearance.

While he was being held in the Bonner County Jail in May of 2010, Capone spoke with Joshua Voss about the case. During the conversation Capone quipped that police "think I killed my wife, but I am not worried because they will never find her body." Voss thought it strange that Capone said he hadn't killed her but went on to say her body would never be found. After seeing news reports about Anderson's disappearance, Voss reported the conversation he had with Capone to authorities.

Two years later in 2012, while Capone was being held on a federal weapons charge at the SeaTac Federal Detention Center, Capt. Hally and another detective met with him. Capone was agitated from the start of the conversation, saying that he had been waiting for two years for them to come and arrest him. Capone got angrier as the conversation progressed and yelled for the guards to come get him.

After Capone was released from federal detention, after serving 33 months in prison for being a felon in possession of a firearm, he was transferred to Asotin County, where he had been previously charged with second degree assault, stemming from the Dec. 27, 2009 incident where he attempted to strangle Anderson.

In January of this year, an Asotin County Jail inmate reported on a series of conversations he had with Capone in which he admitted he "barely choked" Anderson during the Dec. 2009 incident.

"It wasn't like I was trying to kill the bitch," Capone reportedly said, winking after he made the statement.

Capone then laid out how he would kill someone if he were going to kill them. In detail he explained he would put them on a big tarp, wait until the blood coagulated, cut the body up and then dissolve the body parts in a car parts washer. Capone explained temperatures in the washer can reach upwards of 1300 degrees. Three years earlier, during the execution of the search warrant on Capone's business, a car parts washer was seen inside the shop.

The inmate said that Capone got angry at another inmate on another occasion and told that individual, "[D]on't make me cut up another body."