A blood drive is honoring a Prince George's County firefighter killed in the line of duty one year ago.

RELATED: Md. flags at half staff to honor 37-year-old John Ulmschneider

John "Skillet" Ulmschneider was shot and killed in the line of duty one year ago today, Saturday.

Ulmschneider was making a welfare check on a Temple Hills man, who mistakenly thought someone was breaking into his home.

RELATED: Man who fatally shot firefighter in Maryland is indicted

On Friday, a judge sentenced 61-year old David Lumpkin to four years in prison for the firefighter's death.

About fifty people are giving the gift of life Saturday morning in Ulmschneider's honor.

The blood drive is happening until 3 p.m. at Maranatha Fellowship. It's located on University Boulevard near Paint Branch Drive in College Park, MD.