UPDATED: March 22, 2018  10:25 PM

DALLAS (CBSDFW.COM) – Arrested on an outstanding warrant, police grew suspicious after finding jewelry and money on Billy Kipkorir Chemirmir, 45.

Chemirmir had just tossed some items away in a dumpster.

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Sources tell CBS 11 News, Chemirmir is being looked at in connection with several other deaths across multiple cities.

In each case, investigators said it involves an older woman and an attempt to steal from and smother them.

Billy Kipkorir Chemirmir (credit: Dallas County Sheriff’s Department)

An arrest affidavit from Dallas County details the assault of a 91-year-old woman in Plano where “….the suspect forced his way into the victim’s apartment and told her “Go to the bed, don’t fight me.”

The victim complied and the suspect put a pillow over her face, causing her to lose consciousness.

She survived.

In Frisco, investigators said Chemirmir attacked a 93-year-old woman who also survived, where he, “…knocked her from her walker and to the ground, then placed a pillow over her nose and mouth in an attempt to muffle her screams and smother her…”

“…she began to pray believing she was about to die.”

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Regarding the jewelry box case, police searched the dumpster in Dallas’ 4500 block of Pear Ridge, finding a jewelry box… with a name written inside that led them to a murder scene.

The name, Lu Thi Harris, was tied to an address in the 6600 block of Warm Breeze Lane in Dallas.

Officers went to the address to check on the woman, but when they arrived they found the 81-year-old dead from homicidal violence.

Her neighbors are shocked and saddened by her violent death.

“She was so sweet,” one neighbor told CBS 11 News.

Other items found in Chemirmir’s possession were identified as belonging to Harris.

Chemirmir was interviewed by police in custody and charged with Capital Murder in her death.

He remains in Dallas County Jail on a $1,000,000 bail amount.

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