It looks like this is the first such case
It seems that the world's first incident occurred in which a police robot dog «died» in the performance of duties.
On March 6, police in Massachusetts received a report of a man who was allegedly holding his mother hostage. Special forces entered the case, and a bomb squad came to their aid, to which the Roscoe robot manufactured by Boston Dynamics belonged. By the time the police arrived, two women who lived in the house with the intruder were able to lock themselves in one of the rooms. The criminal himself barricaded himself in another room and was armed. He did not react to attempts to persuade him to surrender and periodically fired in the direction of the police.
The robot was launched into the house to discover the exact location of the criminal. At some point, the robot found a man, but he kicked the robot and began to climb to the second floor. However, modern robots of this type are able to stand up perfectly, and as a result the robot continued the pursuit.
When the suspect realized with obvious surprise that the robot was behind him on the stairs, he knocked the robot down again and then pointed the rifle in Roscoe's direction. The robot suddenly lost contact
Later, when the attacker was detained, it turned out that he shot the robot three times, causing the latter to malfunction. State police brought the robot to Boston Dynamics to assess the damage. The company said it wants to keep the robot for research, and the police are already looking for a replacement.