Officials say 24-year-old Matthew James Ruth ambushed and killed three police officers in Pennsylvania. According to police, the officers had been searching for the suspect at the home of his ex-girlfriend.

Three police officers were killed and two others were seriously wounded in a shooting, according to the state police commissioner.

The three detectives killed this week in one of Pennsylvania’s deadliest days for police officers this century are men who are missed for their humility, hard work and willingness to help others.

The alleged gunman who killed three officers and wounded two more in southern Pennsylvania before he was killed by police was a 24-year-old being sought on stalking charges. The suspect, identified as Matthew James Ruth's ex girlfriend suspected he had set her pickup truck on fire and even killed their family dog.

Kendric Curtis, 18, died at Allegheny General Hospital in Pittsburgh hours after being shot by an ATF agent in Aliquippa.

Court records showed there had been complaints the suspect was stalking and trespassing on the Pennsylvania farm.

Matthew James Ruth, 24, has been identified as the suspected shooter in the fatal attack in the farming community of North Codorus Township