Workers at an office building just east of downtown say a suspicious package that may be from the Wichita serial killer BTK has given them an eerie feeling this week.
They say the package was found in a UPS drop box Friday night outside their office complex, the Omni Center, at 250 N. Kansas.
Police announced Tuesday that they "recently" obtained a letter possibly connected to the BTK investigation, and that it had been sent Monday to the FBI for verification.
Through a series of letters, poems and other mailed material dating back to the 1970s, BTK has claimed responsibility for killing at least eight Wichitans from 1974 to 1986.
Although police have not said where or when the latest letter was found, Omni Center workers said Wednesday that Wichita police Detective Kelly Otis, a BTK investigator, met with them Saturday.
Chris Wood, who works at the Omni Center, said Otis did not say the visit was linked to the BTK investigation, but did ask about a package found in a drop box there.
He also urged them to look out for a suspect in his 50s or 60s with gray hair and a medium build, Wood said.
Police have used similar wording to describe BTK, who resurfaced in March after a 25-year silence by mailing a letter to The Wichita Eagle. Since then, police have investigated possible BTK letters sent to KAKE, Channel 10, and the Wichita police and another found at the Wichita Public Library's downtown location.
The Omni Center has drop-off boxes outside for the U.S. Postal Service, FedEx and UPS.
A FedEx spokesman at its corporate headquarters in Memphis said he could confirm his company's drop box was not involved in the incident.
Bob Godlewski, spokesman for UPS at its Atlanta headquarters, declined to elaborate, but said, "We are cooperating with authorities in the investigation."
Wood speculated that the drop-box location was chosen because it is in a secluded area, with I-135 just a block away.
"On one hand, it's cool that it's BTK because I'm interested in the investigation," he said, "but then it's also creepy because I only live three minutes away."
An office receptionist, requesting anonymity, said she has taken numerous calls from local media and employees there about the matter. She said she understood the package was a plain manila envelope with pictures and names inside.
Past communication from BTK has included photographs, poetry, essays, photocopies of identification cards and other items.
Courtney Troyer, an employee who lives nearby, was working Friday evening when the suspicious package was reportedly discovered.
She, like many others inside, were unaware of its possible connection to the BTK investigation until the police announcement Tuesday.
Because most of BTK's victims were female, Troyer said the reported incident has made her extra cautious.
"When I go home, I look behind the door, under the bed and turn on every light," she said. "I won't be going out on late nights by myself."