Friends of the three people killed in a violent attack are hopeful deputies will catch the masked man who opened fire at a Crosby home.

The Harris County Sheriff’s Office was investigating the deadly quadruple shooting early Friday morning at a home in the 400 block of Pecan Avenue.

A motive for the crime isn’t known, but witnesses told deputies a masked man came to the front door and pulled out a gun. A homeowner tried to push the man away, but the suspect started shooting, wounding four men inside the home.

Witnesses said the man was disguised from head to toe, wearing a hoodie and gloves along with the mask.

Life Flight responded to the scene, but three people died. One was listed in critical condition at the hospital.

“These are good people,” said Trey Edwards, a friend of the victims. “They ain’t hurt nobody. I’m talking about looking out for everybody.”

Edwards said he’s a friend of the young men targeted.

The suspect fled in a silver or gray Nissan.

As of 4:45 a.m. Friday deputies were still at the home investigating.

If you have any information, call the Harris County tip line at 832-529-6797 or use the CloseWatch app to send your tip by phone.