BALTIMORE (WJZ) — A memorial service will be held on Wednesday for three Baltimore firefighters killed in the line of duty.

Lt. Paul Butrim, Lt. Kelsey Sadler and Kenny Lacayo died Monday after a partial collapse trapped them in a burning, vacant home in West Baltimore.

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A fourth firefighter, John McMaster, was released from Shock Trauma on Thursday, the same day Sadler was posthumously promoted to lieutenant.

The memorial service will be held at the Baltimore Convention Center at 10 a.m. on Wednesday, Feb. 2.

From the convention center, the late firefighters’ bodies will be escorted to Dulaney Valley Memorial Gardens, a 70-acre cemetery in Timonium.

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A wake will be held at the Maryland State Fairgrounds.

If you would like to help the families of these fallen heroes, the Baltimore City Fire Foundation is accepting donations on their behalf.

The foundation routinely raises money for the families and survivors of firefighters who are injured or killed in the line of duty.

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To make a donation, visit the foundation’s website and look for the link to donate.

CBS Baltimore Staff