The Colorado Bureau of Investigation have established a timeline of Duane Morrison’s activities prior to him storming Platte Canyon High School and eventually killing Emily Keyes and himself…
It was around 11:30 a.m. the day before Duane Morrison shot and killed Emily Keyes and himself when he was first recorded at the school.
His jeep was spotted in the upper administration parking lot leaving about a half hour later at noon.
The next day, September 27, the tape showed that Morrison arrived in the upper administration parking lot at 8:42 a.m. and left 2 minutes later at 8:44 a.m.
The camera then showed his car parked in the student lot at 8:46 a.m.
Morrison then apparently left the area for about an hour. At 8:57a.m., the camera showed his car gone from parking space but at 9:44 a.m., Morrison’s car was back in same spot.
One hour and 9 minutes later, the camera would catch the gunman leaving his jeep and mixing in with students returning to class. At 10:53 a.m., Morrison was seen on the video exiting the vehicle.
Not until 48 minutes later does the first call come from the school at 11:40. Less than 3 minutes later the first deputy arrived at Platte Canyon High School.
About 4 hours later, SWAT team members burst into the classroom where Morrison opened fire on hostage Emily Keyes.
“The single gunshot wound Emily sustained was caused by Morrison,” said Steve Johnson from the CBI.
This quote sums up the entire incident…
The timeline may help answer the question “how” but the “why” is still unanswered.
And we may never know why.