The report also stated that the 29-year-old Simon is expected to stay in jail for a year while officials investigate the fatal shooting on New Year's Eve, although Simon's camp plans to appeal the ruling.
"We think the judge acted in such a way to avoid a reaction from the media," defense attorney Dinosa Dilone told The AP. "There is already forensic evidence that Simon's weapon did not cause the death of the victim."
Simon's lawyer has said he was firing celebratory shots in the air, while the bullet that killed 25-year-old Michel Castillo reportedly struck him in the chest. Castillo's brother, 17-year-old Starling Castillo, was also injured in the incident, which took place in the city of Luperon in Puerto Plata.
Simon could face up to two years in prison if convicted of involuntary manslaughter. The Orioles have not commented on the matter.
A member of Baltimore's bullpen last season, Simon was 4-2 with a 4.93 ERA and 17 saves. He missed nearly all of 2009 after undergoing Tommy John surgery on his right elbow on May 5, and given the O's revamped 'pen, he would have had to compete with several other arms for the team's final spot.
Brittany Ghiroli is a reporter for MLB.com. Read her blog, Britt's Bird Watch, and follow her on Twitter @britt_ghiroli. This story was not subject to the approval of Major League Baseball or its clubs.