The Cook County medical examiner's office ruled his death a suicide.
His suicide is also the latest of at least nine suicides by Chicago police officers in the last two years and comes three years after the U.S. Justice Department reported that the suicide rate among Chicago police officers was 60 % higher than the national average among police officers. "A second officer was shot in his vest, but the round did not penetrate it; a third was shot in the hip".
"There is really no way to convey the magnitude of this loss", Superintendent David Brown said at a press conference at which Boyd was commemorated, as cited by the Chicago Sun-Times.
Brown also pleaded with officers to "always do not forget to take care of ourselves and each other".
Two officers complained of chest pain during the shooting and were taken to the hospital, ABC7 reported.
"When [officers] leave home, they leave their loved ones and put these stars on and risk everything", Brown said.
The suspect was wounded in the shooting and taken to John H. Stroger Jr. Hospital of Cook County, Brown said.
Three officers were wounded Thursday morning when a prisoner opened fire outside a Chicago police station for the 25th District.
Sources said the prisoner, in turn, was shot multiple times outside the police station, 5555 W. Grand.
Other officers congregated in front of the apparent shooting scene, a taped-off location behind the police station.
It is not known how the prisoner got the gun.
Ahern said he did not have any details on the conditions of the officers or the suspect, whose names weren't immediately released.
"Officers got behind this auto, identified it as that carjacking vehicle, stopped the auto, put the suspect in custody, and then the rest transpired afterwards", Brown said.
Police sources told CBS 2 that Boyd's colleagues discovered his body in his office.
Residents were gathered in a nearby park, unsure what had happened, CST reported.
He soon went outside to see what was happening.
"This is not the safest neighborhood in the city, but a police officer getting shot in the morning like this is not normal", he said.