Long before teacher Tetyana Nikitina was shot to death Friday, she said she feared for her life.

In fact, according to divorce records filed in 2005, the 34-year-old Ukranian immigrant also said she was terrified her then-husband would kill their two children.

Nikitina was gunned down Friday afternoon as she left the Salt Lake Head Start school where she worked. Police say she was fatally shot by her former mother-in-law, 70-year-old Mary Nance Hanson.

Unified Police executed a search warrant Monday on the Taylorsville home of Nikitina's ex-husband and Hanson's son, Dale Jankowski. Police said they hoped they could piece together the circumstances that led to Nikitina's death.

For his part, Jankowski said in voluminous divorce records filed in 3rd District Court that Nikitina was trying to set him up with false accusations of domestic abuse, and he was deeply afraid that she would flee the United States with their children — which resulted in a battle over the children's passports.

"There is no label for him (such as person of interest)," Unified Police Lt. Don Hutson said. "He is just a relative of the suspect." Hutson said investigators are interested in the relationship Nikitina had with Hanson, who called 911 after the shooting.