The Joplin Globe, Joplin, MO

Local News

March 29, 2007

Man in custody in deaths of woman, child

By Derek Spellman and Jeff Lehr

GRANBY, Mo. — Court documents suggest that jealously might have been at play in the slayings Wednesday night of a rural Granby woman and her 18-month-old daughter.

Newton County authorities allege that Michael J. Vincent, 40, stabbed his girlfriend, Tammy Mahan, 36, to death and suffocated his 18-month-old daughter, Faithanne Vincent, at their trailer home in rural Granby.

Newton County Sheriff Ken Copeland declined to comment Thursday on possible motives in the killings, but a probable-cause affidavit says that “Vincent stated that Tammy had an adulteress affair and she got what she deserved.”

He also said that while preliminary evidence suggests stabbing and suffocation as the causes of death, results of an autopsy are pending.

Deputies went to Mahan’s home at 8128 Quincy Lane about 9 p.m. Wednesday at the request of the Delaware County (Okla.) Sheriff’s Department, according to the affidavit filed in Newton County Circuit Court along with two counts of first-degree murder.

Oklahoma officers asked their Newton County counterparts to check on the well-being of Mahan and the couple’s daughter after Vincent was involved in an automobile accident Wednesday night near Grove, Okla. While he was at Grove General Hospital, he asked about Mahan and Faithanne, according to the affidavit.

When officers entered Mahan’s home — one of a small cluster of trailers in remote Newton County — they found Mahan dead in her bed in a puddle of blood, according to the affidavit. They then found the child dead in her crib.

Later, while being interviewed at the Grove hospital by a pair of Newton County detectives, Vincent confessed that he killed Mahan and the child, according to the affidavit.

Asked if he had ever seen a similar case, Copeland replied that he has seen double homicides involving spouses or couples, but “I have never seen one where the person went ahead and killed the child, too.”

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