Photo: Matt Thieu and Reagan Webber.
The father, War Eagle Eastwood, told the station his son used the father's rifle to commit the shooting, and that he did so without permission. The father also said Bruco Eastwood never graduated from high school, spent the last two years trying to get his GED, and that failing the test seemed to depress him.
The station reported the 32-year-old suspect attended Deer Creek Middle School in the early 1990s.
The younger Eastwood has an arrest record in Colorado dating back to 1996 for menacing, assault, domestic violence and driving under the influence of alcohol, according to the Colorado Bureau of Investigation.
In 2005, he participated in a NASA-funded medical study in which he spent 10 days in a hospital bed so scientists could study muscle wasting, an affliction experienced by astronauts during long flights, according to a story in the Rocky Mountain News.
He told the newspaper that he had a lifelong dream of being an astronaut and described his occupation to the newspaper as horse trainer working at his father's Eagle's Nest Ranch in Hudson, Colo.
The shooting victims, students Reagan Webber and Matt Thieu, were both treated at Littleton Adventist Hospital, where a spokeswoman said Webber was treated and released to her home. Thieu was transferred to The Children's Hospital, where he was listed in critical condition late Tuesday.
Eastwood is expected to make his first court appearance Wednesday.