Update: Cop Killers Are Bombers?

From the Boston Herald:
An MIT police officer was shot dead late last night on the MIT campus and an MBTA officer was wounded early this morning in a second encounter in Watertown in a wild scene that involved explosives as well as gunfire, police said.
State police spokesman David Procopio said police were investigating whether there was a connection between the shootings and the Marathon bombings. By 2:30 a.m., Procopio said that two suspects were in custody in Watertown, but police were still actively searching for more suspects.
"We don't know how many suspects there are," Procopio said.
Dozens of police who had converged on the MIT scene near Kendall Square after the shooting there around 10:48 p.m. raced toward Watertown shortly before 1 a.m. this mornin,g toward an armed standoff with suspects in the Arsenal Street area, where heavily armed SWAT teams and uniformed cops with their handguns drawn were actively searching for suspects. 
Police in Watertown were shouting warnings that the suspects were “throwing explosives, and warned about “unexploded ordinance.” They later shouted that one suspect was in custody and another was still at large. 
Procopio said the MIT and Watertown incidents were believed to be related, and the watertown situation began as part of the search for suspects in the MIT officer's killing.
“We tried to stop a vehicle in Watertown. There was another officer shot in Watertown,” Procopio said. 
At least one FBI agent was on scene. The initial incident began with gunshots reported at 10:48 p.m. at Building 32, Stata Building, on Vassar Street near Main Street, off Kendall Square.
http://bostonherald.com/
Coincidence?