Authorities filed search warrant affidavits for cellphone and financial records in their investigation into the disappearance of Kira Trevino, who was last seen alive Feb. 21 and is presumed dead at the hands of her husband.

Court documents in the case against Jeffery Trevino, 39, have steadily accumulated in recent weeks as prosecutors prepare to try the St. Paul man before a jury on two counts of second-degree murder starting on May 28. Last week prosecutors released a list of 230 possible witnesses they might call at trial, including Kira Trevino's family members, co-workers at a clothing retailer, Delia's, at the Mall of America and other mall employees.

Two search warrant affidavits signed in early April and released Tuesday show that authorities are seeking Kira and Jeffery Trevino's financial records from Wells Fargo and all data, including calls, texts and cellphone towers utilized, for their cellphones.

Kira Trevino's mother, Marcie Steger, told investigators that Jeffery Trevino was very controlling and was monitoring her daughter's activities by attempting to access her bank and personal accounts, according to the affidavits.

Kira Trevino's debit card was last used on Feb. 22 about 2:30 a.m., her cellphone was last active on Feb. 21 and her last Facebook post was on Feb. 20.

Jeffery Trevino has said he used his wife's debit card at 2:30 a.m. on Feb. 22 to put gas in her car.

Jeffery D. Trevino

According to charges against Jeffery Trevino and other court documents: Kira Trevino had talked about leaving her husband and moving out of the house the couple rented in the 500 block of E. Iowa Avenue.

Jeffery Trevino met his wife on Feb. 21 at 2 p.m. for coffee at the Mall of America, where she worked comanaging Delia's. The couple later had dinner at Crave restaurant, went to the Skydeck Lounge and returned home where they watched a movie.

Jeffery Trevino told police they both fell asleep on the couch, and that he later took her car to get gas. He told police that Kira Trevino left their home on Feb. 22 at 8:30 a.m., and that he hasn't had contact with her since.

He reported her missing on Feb. 24 after she missed work, and notified her family of her disappearance that same day. Co-workers, family members and friends said it was out of character for her to miss work and disappear without a word.

Her car was found parked in a mall ramp and searched Feb. 25. Authorities said they found Kira Trevino's blood in the car. Video surveillance showed a person driving her car there a few days earlier, parking it and then taking a cab to within a block of the couple's home.

Authorities allege in the charges that Jeffery Trevino purchased cleaning supplies the weekend his wife went missing, and tried to cover up the crime by cleaning the home and moving furniture.

A search of the home on Feb. 25 found "copious amounts" of blood that matched Kira Trevino's DNA, leading police to believe she's dead. Searches for her have centered on nearby Keller Lake in Maplewood, where volunteers found a plastic bag containing a sports bra and a pillow with blood that matched her DNA.

Her body has not been recovered, and searches this weekend did not yield any more clues.

Chao Xiong • 612-270-4708

Twitter: @ChaoStrib