A suspect in the case of the death of a Dallas ISD teacher's aide has been arrested.
Mesquite Police arrested 34-year-old Sixto Banegas Matute from Balch Springs on Wednesday, Jan. 10, for murder in connection to the death of Jennifer Mendez Olascoaga.
According to the family, the 24-year-old Dallas resident was last seen Sept. 27 at about 8:11 p.m. leaving a mobile home park along Highway 175 in Seagoville.
Her car was found abandoned, without her purse or phone, on Lawson Road the next morning on Sept. 28.
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Remains found in October near I-20 in Mesquite were identified as Mendez Olascoaga last November.
An arrest affidavit obtained by NBC 5 reveal found human hair, bones and a torso scattered in a wooded area in Mesquite off IH-20 some two weeks after Olascoaga's disappearance. The documents says detectives with the Mesquite Police Department then obtained her phone records and discovered a 15-minute call and several text messages to and from Olascoaga and the suspect around the time she was at the QuikTrip.
Call detail records were then obtained for suspects phone. The affidavit went on to say both Jennifer's and Matute's phones pinged in the same area along I-20 within a few seconds of each other. Both phones then pinged in the area where the human remains were discovered.
Detectives said forensics revealed small bullet fragments within the hair of those remains. Based on the facts, Mesquite police said probable cause did exist to charge Matute with murder.
Olascoaga's death was ultimately ruled a homicide by the Dallas County ME's Office.
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The investigation is active and ongoing.