SAN ANGELO — In January 2005, Michael Severance, was reported missing in San Angelo. After his body was found in a stock tank about 15 miles northwest of the city, an autopsy revealed he had large amounts of animal tranquilizers in his system.
His wife, veterinarian Wendi Mae Davidson, was arrested and eventually found guilty of murder. A Tom Green County jury sentenced her to 25 years in prison.
Over a decade later, a new show by ABC News will explore the case with interviews from officials, family and an in-prison interview with Davidson. The show, “20/20,” will air 8 p.m. Friday, March 25, 2022 on ABC, according to an ABC news release. It will be available the following day on Hulu.
The show, in collaboration with Plum Pictures, will have ABC News chief national correspondent Matt Gutman interviewing Davidson on “what she claims really happened to her husband,” the release stated.
Other interviews will include:
- Severance’s brother and father.
- Severance’s friends.
- Ron Sanders, former Tom Green County Sheriff First Sergeant.
- Shawn Palmer, retired Texas Ranger.
- Greg McCormick, former Special Agent with Air Force OSI.
- Dr. Sridhar Natarajan, former chief medical examiner in Lubbock County.
- Diane Fanning, author of “A Poisoned Passion,” which is about the murder.
Wendi Davidson case timeline
Jan. 14-15, 2005: San Angelo veterinarian Wendi Mae Davidson, owner of Advanced Animal Care clinic on Sherwood Way, poisons her husband, Dyess Air Force Base Staff Sgt. Michael Leslie Severance, with a mixture containing what authorities believe to be phenobarbital and pentobarbital, substances usually used to euthanize animals.
Jan. 16, 2005: Davidson reports Severance as missing since the day before. Severance had been on leave until Jan. 24, at which time the Air Force begins investigating.
March 5, 2005: Police arrest Davidson on a charge of tampering with evidence, believing that she dumped her husband’s body into a stock tank on the Tom Green County ranch of a family friend.
March 6, 2005: Investigators recover Severance’s body, stabbed 41 times and weighted down with more than 140 pounds of car parts and other items.
April 15, 2005: Police arrest Davidson on a second evidence-tampering charge after altered records involving her clinic’s use of potentially lethal drugs are found in a clinic trash can.
May 24, 2005: A Tom Green County grand jury indicts Davidson on one count of murder and two counts of tampering with evidence.
Oct. 2, 2006: Davidson pleads no contest to all three counts and is sentenced to 25 years in prison with two concurrent terms of 10 years each. The defense reserves the right to appeal Gossett’s ruling on the motion to suppress.
Alana Edgin is a journalist covering Crime and Courts in West Texas. Send her a news tip at email@example.com.