BOSTON (CBS) – Five fatal shootings have occurred in Boston neighborhoods since Friday, marking a deadly Columbus Day weekend for the city.

Police on Monday identified a man killed Friday in Dorchester as 22-year-old Gabriel Rodriguez of Dorchester. Rodriguez was gunned down on Emrose Terrace around 7 p.m. Friday.

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Hours earlier, in Roxbury, police say another Dorchester man, 26-year-old Raymond Holloway-Creighton, was shot and killed on Massachusetts Avenue around 3:30 a.m. Friday.

Police have made arrests in two of the five fatal shootings, which occurred in Mattapan, Dorchester and Roxbury.

A growing makeshift memorial outside a Dorchester gas station where a clerk was murdered. (WBZ-TV)

On Sunday, two fatal shootings occurred in Mattapan. A man in his 30s was shot and killed around noon Sunday on Itasca Street in Mattapan. Police have charged Kai Harris, 26, of Brockton in that murder.

Hours earlier, around 2:30 a.m. Sunday, a man in his 40s was shot and killed on Mildred Avenue in Mattapan.

Investigators at one of five fatal crime scenes in Boston since Friday. (WBZ-TV)

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Late Saturday night, a deadly shooting of a store clerk in Dorchester during an attempted robbery has stunned and angered the community.

Police have charged Kevin Williams, 21, in that murder. The victim, 67-year-old Jose Luis Phinn Williams, was remembered as a friendly man.

Jose Luis Phinn Williams. (Family photo)

“He was lovable. He smiled. He always kept a smile on his face. He knew people. People came by here and greeted him, and you know, just seeing the amount of people this morning stop by,” one woman said.

The victim’s sister, Rosa Phinn, decried the violence.

“It’s too much happening in the community. Every single day we have people dying, people shot,” Phinn said.

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Anyone with information about the shootings is asked to call Boston Police detectives at 617-343-4470.