Used against as in trying to show intent. He also gave an initial statement and then allegedly a different statement later on about the direction of the ATV rider. The article isn't clear if the online posts were before or after the shooting either, or how far back in time they went. (maybe years?) Also the article doesn't give the actual statements, only the opinion of the prosecutor as to what they imply.
https://www.whio.com/news/national/...le-shooting-atv-rider/hefb4N5wgzIOttllmhDmMI/The charges stem from an incident in February 2018 on Route 93 in South Boston, in which a large group of motorbikes, ATVs, dirt bikes and mopeds drove illegally drove onto the highway.
Trooper Sheehan was one of 10 Mass. State Troopers responding to the scene.
According to a prosecutor, after one operator broke away from the troopers’ grasp, the trooper took out his Smith and Wesson M&P patrol rifle as a show of force and fired twice at an ATV, hitting the person who was driving it in the foot.
During the investigation, the prosecutor said Trooper Sheehan changed his story about what happened.
"His original version of events was that the ATV was driving directly towards him," Assistant District Attorney John Verner said. "He later switched it to he was driving diagonally towards him."
As prosecutors present their case, they are going beyond the physical evidence of what happened that day.
They also intend to use Sheehan’s comments on social media, on a site called Mass. Cops, where
Sheehan posted as 'Big Irish' to show the trooper’s state of mind and motive at the time of the incident.
The Suffolk County DA saying in court records, "many of the posts are racially tinged, disparaging of women, promote or condone violence or excessive force, suggest 'getting creative' when finding ways to stop citizens and a lack of respect for people and human life."
Trooper Sheehan is suspended while the case works its way through the courts.
He is released on personal recognizance and his due back in court in December.