Police charge second person in April murder investigation

Murder suspects in custody
Murder suspects in custody(MNPD)
Published: May. 21, 2022 at 11:45 AM CDT|Updated: Jun. 4, 2022 at 4:16 PM CDT
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NASHVILLE, Tenn. (WSMV) - Metro Nashville Police announced Saturday that they have charged a second person they believe is involved in a murder investigation.

MNPD said via Twitter that they had charged Nicholas Washington, 25, with the April 9th murder of Mario Armondo Rios, 33, on Glastonbury Rd.

Washington was already in custody due to aggravated robbery, gun, and drugs charges.

MNPD confirmed that Washington’s girlfriend, Gabrielle Castelianos, 20, remains in custody after receiving a warrant in May for the murder of Rios.

Police said Castelianos has previously arrested on May 11th for robbery, narcotics, and weapons charges. She now remains in custody.

Police added that Washington and Castelianos allegedly robbed La Mexicana Mercado at 989 Murfreesboro Pike at 8:45 a.m. on April 9th, using Ramons’ truck as the getaway vehicle. It was determined that Ramos gave his truck to Castelianos to drive on April 7th. The truck was parked and still running at the murder scene at 10:45 a.m. that day.

Homicide Unit Detective Chris Dickerson is leading this investigation.

This is a breaking news story, and we will update the account as we receive more information.

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