A suspect in the shooting death of a 6-year-old girl was sentenced to 50 years in prison after pleading guilty to capital murder.

Marco Antonio Chairez pleaded guilty Tuesday in connection with the drive-by shooting death of Yvonne Adele Medeles.

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Chairez had previously pleaded not guilty to charges of capital murder of a person under 10 years old and murder, but changed his plea Tuesday after a jury was selected for his trial.

The victim's mother said she was surprised by the plea.

"It surprised me really — I'm really shocked," Yuliana Balderas said. "I'm just still fighting for my daughter's justice, and hopefully I do get it.

Three other suspects — William Garcia, Daniel Guzman Flores and Juan Roman Olaguez — were also arrested in connection with the death.

Medeles was inside her home watching television when she was hit. The Hidalgo County Sheriff's Office said at the time of the shooting that they believed it was the result of a dispute between neighbors.

A pre-trial hearing for the remaining suspects is set for June

As part of a plea agreement, Chairez's second charge of murder was dismissed.