Yaroslavl Man on Trial for Poisonings

A Yaroslavl man is facing life in prison for killing at least six people, including his wife and daughter, by adding poison to their food and watching their agonizing deaths, national media reported.

Vyacheslav Solovyov started inventing poisons to test on humans some six years ago, Rossia television reported. Solovyov has been charged with six murders and four attempted poisonings.

"He has pleaded guilty to a majority of the killings, but his motives remain unclear," Rossia television reported.

Despite researching the matter in libraries, Solovyov failed to produce his own brand of poison. Buying large amounts of poison from a private firm was much easier, the report cited prosecutors as saying.

His wife, with whom he had lived for 14 years, was his first victim.

"He himself added quick-acting poison to her coffee," the report said. "Vyacheslav had no doubts this would be an ideal murder."

After he was arrested, he said it was a feeling of impunity that led him to carry out more poisonings, and his 14-year-old daughter, Nastya, was to become the next victim.

He watched the deadly effects of the poison on his own child's health for six months but did nothing to save her, despite knowing what antidote would be needed.

Solovyov was caught after he tried to poison a neighboring family. The death of their young child finally led police to wonder why people surrounding Solovyov were dying.