KAKE News has learned new details into the investigation of a missing El Dorado teenager. Emily Sander, 18, was last seen on Friday leaving The Retreat bar with Israel Mireles.

On Tuesday, the owner of Bella Casa, the restaurant that employed Mireles, told KAKE News that on Saturday he saw what he thought was blood in the motel room where Mireles stayed. Joe Terziu says he'd been called by the manager of the El Dorado Motel over concerns of damage in the room.

Major Rick Kennedy said they are looking for a white bedspread with a floral pattern that could be connected to Emily's disappearance. He displayed a photo of the bedspread - shown below. Police would not say whether the bedspread was from the motel.

Kennedy said they are searching the roadside of Hwy 54 to Ft Scott and Hwy 69 south to Baxter Springs for clues. They also ask the public in those areas to be on the lookout.

Authorities in Vernon, Texas located the 2007 Ford Taurus rental car that Mireles was believed to be using. Vernon is just south of the Oklahoma/Texas border on Hwy 283, northwest of Wichita Falls.

Terziu described Mireles as a hard worker who'd worked on and off for him for the last three years. He said Mireles lived in the motel room with Victoria Martens, the 16-year-old girl from Hays who is suspected of being with Mireles now. Police say they hope to talk to Mireles ASAP in order to determine where Emily is.

Terziu said that on Friday, he gave Mireles $600 after the 24-year-old told him that his grandmother had cancer.

During a news conference Monday afternoon, police say that they believe she was the victim of violence. Although they wouldn't elaborate, they say evidence has led them to that belief.

Police don't believe Emily is still with Mireles. Mireles and Martens have connections in Hays and Baxter Springs, as well as in Oklahoma and Texas. Emily also attended high school in Bandera, Texas - not far from San Antonio.

Emily Sander is 5' 3" and weighs 105 pounds. She has brown hair and blue eyes. If you have any information, please call El Dorado Police at 316-321-9120.

Photos of all three can be seen below.