Police say Bruce Kelley Jr. (pictured, left, from a previous arrest) was shot to death after he stabbed K-9 Aren (right).

Advertisement Port Authority police K-9 stabbed to death, suspect killed Police say Bruce Kelley Jr. attacks K-9 Aren with knife after officers try to stun him in Wilkinsburg Share Shares Copy Link Copy

An investigation was continuing Monday after a man who fatally stabbed a Port Authority K-9 officer was shot and killed by police.VIDEO: Watch the latest report by Shannon PerrineThe incident began when transit officers came upon a man and his adult son drinking alcohol Sunday afternoon at the Wood Street gazebo in Wilkinsburg near the Martin Luther King Jr. East Busway, Allegheny County Police Superintendent Charles Moffatt said.Police said an altercation broke out, and the men got way. One officer was taken to a hospital.Police said officers quickly caught the father, then eventually found the son, Bruce Kelley Jr., 37, who had a knife and was ordered to stop but did not.Police shouted to neighbors to get safely inside their homes along with their children while they say Kelley walked through Wilkinsburg with a knife.Officers unsuccessfully tried to stun Kelley, prompting the deployment of K-9 Aren to take him down."At that time, they released the dog on the man, and he had a knife, and he stabbed the dog," Moffatt said. "The dog went down, and the officers shot and killed the man."RELATED: Read the Port Authority's policy on use of forceAren was taken to the Pittsburgh Veterinary Specialty & Emergency Center, where the K-9 died a short time later.A necropsy report showed K-9 Aren died of blood loss from a wound in the oral cavity. A memorial service is being planned for Aren at the North Shore police memorial at 11 a.m. Thursday.Bruce Kelley Jr. died of multiple gunshot wounds to the torso and extremities according to an autopsy report.Port Authority Police Chief Matthew Porter said the officers are on administrative leave while the county police continue their investigation.Bruce Kelley Sr., 60, remained in jail Monday after being arraigned on charges that include aggravated assault and prohibited offensive weapons. His preliminary hearing is set for Feb. 11.The criminal complaint against Kelley Sr. says his son attempted to walk away, then cursed when the officers told him to stop, and rushed an officer identified as Officer Adams. Kelley Jr. fought with that officer, who was later taken to a hospital with cuts to his hands, according to transit spokesman Jim Ritchie.When Officer Emily Hampy tried to help subdue Kelley Jr., the man called for his father for help. That's when Kelley Sr. allegedly punched Hampy in her face and fought with her, knocking her radio and nametag loose, according to the complaint.Kelley Sr. is charged with possessing brass knuckles, but the complaint doesn't say if he used them against Hampy, who pepper-sprayed him and then tried to help the other officer subdue Kelley Jr., according to the complaint.Forensics arrives to K-9 deathStay with WTAE.com and the Pittsburgh's Action News 4 mobile app as more information becomes available on this story.10925658