TIMELINE: Brutal murder in Baytown on Mother's Day

BAYTOWN, Texas (KTRK) -- On Mother's Day in 2016, the body of Nataliya Shal was found inside her apartment in Baytown.

Investigators say she was sexually assaulted and brutally murdered.

It took detectives a year and a half to make an arrest. This month, Baytown police arrested 29-year-old Byron Collins after a re-test of DNA evidence from the scene.

In the video above, watch the timeline on how authorities were able to get an arrest.

RELATED: 'Good, basic detective work' leads to arrest of Mother's Day murder suspect in Baytown

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A FAMILY AFFAIR: Using DNA and a saliva sample, investigators said they were able to find a Baytown woman's alleged killer.

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