Update, 4:00p.m. The death of professor Sue Ann Marcum, an American University professor found dead in her Bethesda home Monday, has been officially ruled a homicide by the office of the Medical Examiner in Baltimore, according to a release from Montgomery County police.

The cause of death was ruled asphyxia and blunt force trauma, according to the statement. There had been forced entry into her home near Massachusetts Avenue, along with signs of a struggle.

18-year-old Deandrew Hamlin is being investigated by Montgomery County police as a possible suspect in the murder investigation after he was spotted driving Marcum's stolen Jeep in Northwest Washington. Montgomery County police homicide detectives responded to Washington to interview Hamlin and performing a forensic examination of the Jeep, according to the statement.

The American University community is remembering professor Sue Marcum both on campus and online.

Marcum was an accounting professor at AU's Kogod School of Business. In a memorial piece posted on the school's website, friends and colleagues shared fond memories of Marcum. "Described by her students and peers as warm, caring, and funny, Sue was a popular instructor, earning Kogod's Professor of the Year award for three consecutive years," the post read. "Students say she brought acccounting – a challenging subject – to life with her enthusiasm."

Members of the AU community were also invited to share memories of Marcum in a remembrance book in the lobby of the Kogod Business School, as well as on a memorial Facebook page set up for the beloved  professor. Wednesday afternoon, over 800 people had fanned the page, entitled "Remember Professor Marcum."

The memorial post detailed Marcum's work in establishing the Sue Marcum Scholarship fund, an endowment for Kogod alumni who return for a masters degree in accounting from AU. Marcum was herself a two-time Kogod alumna, according to the post, earning a BSBA in 1979 and a masters degree in taxation in 1987. She was also director of the master's in accounting program and a faculty advisor for Kogod's Accounting Club. Marcum was well-known for her love of Spanish, a language she learned as an adult. She had considered teaching or retiring in Latin America, according to the post.

Funeral arrangements were not yet known by a spokesperson at American University. A memorial service at AU is being planned.

Original Post: Police have uncovered "items of evidentiary value" related to the murder investigation of American University professor Sue Ann Marcum in the home of a man found driving Marcum's missing Jeep.

Deandrew Hamlin, 18, of Northwest Washington, D.C., was found driving Marcum's Jeep in Washington around 11:30p.m. Monday after Marcum was found dead in her Bethesda home. The home showed signs of a struggle, according to police. The items were uncovered Tuesday night after a search of Hamlin's home in the 1300 block of 5^th Street, N.W. There are currently no charges against Hamlin from Montgomery County Police, but they have named him a "possible suspect" in the murder investigation, according to Angela Cruz, a police spokeswoman.

D.C. police have charged Hamlin with unauthorized use of a motor vehicle and felony fleeing after attempting to elude police and striking a utility pole near New Jersey Avenue and M Street, N.W. More charges are pending.