Maurice Harris, 19, has been charged for the quadruple murder that occurred at Nadia Chicken and Fish restaurant in Chicago last week. Four men, between the ages of 19 and 28, were at the restaurant when they were gunned down.

Chicago Police claim this tragedy was revenge for Harris’ father’s death. His father, Jerry Jacobs, was gunned down the day before the attack. His father is a documented gang member and has been arrested twice for murder.

Harris has been arrested 29 times as a juvenile according to USA Today.

Police are still investigating if his father’s murder is also tied with the fatal shooting of a 27-year old man and a 23-year old woman hours after the restaurant shooting.

Some of these victims are tied to Gangster Disciple or Black P Stone gangs.