At least 3 dead, more than a dozen injured since Friday night

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CHICAGO  - The weekend is off to a deadly start in Chicago.  At least 3 people were killed and more than a dozen shot from 5 p.m. Friday to 6 a.m. Saturday.

Three people were shot, one of them died, inside an apartment in the 1900 block of West Belle Plaine Avenue in the North Center neighborhood on the city's North Side.

That address is about four blocks from Mayor Emanuel's Ravenswood home.

Police say the shooting started with an argument at a party inside the apartment.

At about 7:30 p.m., a 25-year-old man and a 23-year-old began fighting and the 25-year-old pulled out a gun and began shooting, hitting the 23-year-old man in the neck.    He also shot another 25-year-old man in the abdomen.  That man then fired back and fatally shot the gunman in the chest.   He was pronounced dead at the scene.

The other two victims were taken to Advocate Illinois Masonic Medical Center in critical condition.

Witnesses say they heard a commotion outside the apartment building and saw police arrest 5 or 6 people.

Later Friday evening, at about 8:45 p.m. , four men were wounded and one was killed  in another shooting in Lawndale.

Police say the men were outside in the 1500 block of South Kedzie Avenue when they heard gunfire and felt pain.

A 29-year-old man was shot in the shoulder and took himself to Mount Sinai Hospital, where he was later pronounced dead.

A 26-year-old man was grazed in the thigh and refused medical treatment.

Two 28-year-old men both were shot in the thigh and taken to the hospital for treatment.

A 21-year-old man was shot in the ankle and took himself to Saint Anthony Hospital.

No arrests have been made in that shooting.

Since New Year's Day, more than 15 people have been killed by gun violence in Chicago, at least 90 others have been injured.