SAN ANGELO, Texas (AP) – A Maine man whose missing son was found dead last March in a Texas pond says a coroner’s report raises questions about statements by authorities that the victim’s wife is the sole suspect.

“There ain’t no way that she did it alone,” Leslie Severance said Friday after learning that his son was stabbed 41 times after being fatally poisoned and that five weights totaling 145 pounds were attached to his body.

“Wow. Wow. That opens up a whole bunch of new questions about this,” Severance told the Bangor Daily News. “It changes my feelings about what I have been told.”

Wendi Mae Davidson, 26, has been indicted on one count of murder and two counts of tampering with evidence in connection with the death of Air Force Staff Sgt. Michael Leslie Severance, 24, a native of Lee, Maine, who had served in Iraq and Afghanistan.

Davidson, a veterinarian who is accused of killing her husband with a drug used to euthanize animals, remains free on $50,000 bail and has maintained regular hours at her animal clinic. Her brother, game warden Marshall Davidson, said the family had no comment on the autopsy report.

Justice of the Peace Eddie Howard said the autopsy indicates that Severance’s homicide earlier this year probably was not an act of rage. Howard called the killing ghastly but icily efficient, one of the worst he has seen in more than a dozen years on the job.

“These were postmortem cuts to allow the release of gases that typically accumulate in decomposing bodies,” Howard said. “Rage is hitting (stabbing or poking) one spot. It’s more localized. These were spread out.”

Davidson reported that Severance disappeared Jan. 15 because he feared leaving Dyess Air Force base in Abilene for a posting overseas, a statement disputed by military officials and family members.

Davidson was arrested March 5 after telling her brother that she came home late Jan. 15, found her husband’s body in their San Angelo home and disposed of it because she feared other family members had killed him.

She filed for divorce Jan. 17 and wrote a letter to a Severance friend in Florida about a week before the body’s discovery, saying it was time to move on with her life.

The autopsy report detailed that Severance was clad only in boxer shorts when he was found. Fish lines, braided rope, and zip ties held two cinder blocks, a rock, a boat anchor and a brake drum attached to his legs, neck and wrists.

Phenobarbital and large amounts of pentobarbital, which veterinarians typically use to euthanize animals, were in his body, as was phenytoin, which is used as an anti-convulsant in humans, Howard said.

Texas authorities recently granted the Severance family immediate 60-day custody of Shane Michael Severance, the couple’s 9-month-old child.