HIGHLANDS RANCH, Colo. — An 18-year-old is one of two people in custody in the wake of Tuesday’s deadly shooting at STEM School Highlands Ranch, the Douglas County Sheriff's Office confirmed. 

That suspect is Devon Erickson, the Sheriff's Office said. 

He's being held on one count of suspicion of first-degree murder after deliberation and 29 counts of attempted first-degree murder after deliberation.

The second suspect is a juvenile female, who is not being named at this time due to her age. 

Below is a list of 9NEWS coverage of the tragic STEM School Highlands Ranch shooting:

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RELATED: The history of STEM School Highlands Ranch

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RELATED: STEM School Highlands Ranch security guard saw muzzle of weapon, fired 2 rounds, sources say

RELATED: 'A guitar case with guns made it into the school': DougCo commissioners allocate $10M toward school safety

RELATED: Here's how you can submit encouraging messages for STEM School Highlands Ranch seniors

RELATED: 'We made a decision that was right for us': Student who helped tackle STEM School shooter explains that moment

RELATED: Douglas County school board holds first meeting following shooting at STEM School

RELATED: Celebration of life for Kendrick Castillo will be held Wednesday

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