According to the website of the Pulitzer Prizes, photography staff of Reuters, including Kim, Loren Elliott and Lucy Nicholson were named the victor of the breaking news photography award.
A man with a longstanding grudge against the Capital Gazette is charged with the attack.
Reuters was also recognized for worldwide reporting for covering the brutal crackdown on Rohingya Muslims by security forces in Buddhist-majority Myanmar.
Aretha Franklin performs at the House of Blues in Los Angeles. Ellen Reid's opera "p r i s m", which tackles sexual and emotional abuse, was given the music award, and Forrest Gander's elegiac "Be With" the poetry prize.
Aretha Franklin received a posthumous special citation from the Pulitzer Prize committee, placing the soul titan in a prestigious class of musicians previously recognised, including Duke Ellington, George Gershwin, Hank Williams, John Coltrane, Thelonious Monk and Bob Dylan.
Novelist Richard Powers won the Pulitzer for fiction for "The Overstory", a panoramic look at nine Americans whose lives become entwined due to their experiences with trees, and David W. Blight picked up the prize in history for his acclaimed biography "Frederick Douglas".
Meanwhile, reporters from the Associated Press and Wall Street Journal were honored in the worldwide reporting sections for their coverage of a war in Yemen and a murder in Myanmar, respectively. Both journalists were jailed in Myanmar for their reporting.
Reuters journalists Wa Lone and Kyaw Soe Oo were singled out for their contributions to the latter reporting. Their supporters say the two were framed in retaliation for their reporting.
In the cultural field, Jackie Sibblies Drury's play Fairview, which examined white people's obsession with African American stereotypes, has won the Pulitzer for drama.
"Fairview" begins as a contemporary domestic comedy involving a well-off black family and ends with the invisible fourth wall destroyed and the audience pulled down a rabbit hole involving race and identity. The show debuted at the Soho Rep, playing to sell-out crowds.
"Fairview", by Brooklyn-based playwright Drury, was honored in the drama category. Times music critic Mark Swed lauded it as "ineffably moving". "Melodies are endless and inventively transformed, the atmospheric pressure ever changing". Last year, Kendrick Lamarbecame the first hip-hop act to win a Pulitzer, making history and cementing his legacy.
The prizes were established by newspaper publisher Joseph Pulitzer.
It received the public service award for "exposing failings by school and law enforcement officials before and after the deadly shooting rampage". The other awards carry a prize of $15,000 each.