A man who killed the woman he lived with and a university professor in Mississippi has apparently shot himself dead.
Greenville officers were following suspect Shannon Lamb when he pulled over, jumped out of his car and ran, police said.
The officers heard one gunshot and found Lamb with an apparent self-inflicted gunshot wound.
The 45-year-old was pronounced dead in hospital.
Police said Lamb had earlier told authorities that he was "not going to jail".
Officers believe Lamb killed Delta State University history professor Dr Ethan Schmidt as well as the woman Lamb lived with on the Mississippi Gulf Coast, who has been identified as 41-year-old Amy Prentiss.
Dr Schmidt's body was found in his office on Monday morning, prompting a campus-wide lockdown.
SWAT teams were seen clearing buildings and police helicopters patrolled above the school in Cleveland, about 20 miles east of the Mississippi-Arkansas state line.
The lockdown was lifted on Monday night but no classes have been planned for Tuesday.
Instead, students, faculty and staff are invited to the campus to attend a vigil in the evening to honour the murdered professor, who was 39.
The motive of the killings is not clear.
Lamb received a doctorate in education from Delta State University in the spring of 2015, according to his resume posted on the university's website.
He started working there in 2009 and taught geography and education classes, and volunteered with Habitat for Humanity.
Dr Schmidt specialised in Native American and colonial history. A fellow professor at Delta State described him as "a gentlemen in every sense of the word".
