A police honor guard in Baton Rouge, La., salutes the funeral procession Saturday of Sheriff Deputy Brad Garafola as it passes the scene where Garafola and two police officers were gunned down.

BATON ROUGE, La. — The last of the three Louisiana law enforcement officers killed in an ambush near a busy highway in Baton Rouge is being buried today.

Funeral services were being held for city police officer Montrell Jackson, a 32-year-old slain by a gunman who authorities said targeted law enforcement.

Just three days before his death, Jackson — married with a four-month-old son named Mason — wrote a Facebook post detailing how difficult it was for him to be both a black man and a police officer, describing himself as “tired physically and emotionally.” He had been on the police force for a decade and had risen to the rank of corporal.

“I swear to God I love this city but I wonder if this city loves me. In uniform I get nasty hateful looks and out of uniform some consider me a threat,” Jackson wrote.

Relatives described Jackson as a “gentle giant.”

Baton Rouge residents have been mourning at a series of memorial and funeral services since Jackson, police officer Matthew Gerald, 41, and East Baton Rouge Parish sheriff’s deputy Brad Garafola, 45, were killed in a July 17 shootout with masked former Marine, Gavin Long.