Three people were killed last week in separate motorcycle crashes in the Washington area. They included a D.C. firefighter and a Montgomery County man whose bike crashed into his house and went through a window.

The firefighter, Terrence Daryl Boston, 49, of Brandywine, was killed Aug. 25 as he was riding south on Old Branch Avenue in the Temple Hills area, Prince George’s County police said.

They said a northbound car that was trying to turn left onto Allentown Way failed to yield to him. Boston struck the side of the car and died at a hospital.

In another Aug. 25 crash, Maryland State Police said Christopher R. Stabile, 37, of Olney, was killed in Frederick County when his motorcycle went out of control on a curve on Route 550 and he was thrown off.

Richard Mark Sampson, 44, was killed on Friday on Highland Hall Drive in the Montgomery Village area when his bike went out of control after he “did a ‘wheelie,’ ” Montgomery County police said.

Police said the motorcycle accelerated, hit a curb, crossed a grass area and went through the window of Sampson’s house. Sampson was pinned underneath the motorcycle when it landed, police said. He died at a hospital.