LITTLE EGG HARBOR TOWNSHIP, N.J. (CBS 2/AP) — Police in Little Egg Harbor say a sniper killed his brother, a a good Samaritan and himself.

Police say 45-year-old Craig Mueller shot and killed 52-year-old Bryan Mueller from a second-floor window in the home they shared. They say he also killed 21-year-old Cara Ellis after she ran to the brother’s aid.

Authorities say they found Craig Mueller dead in a second-floor room about four hours later.

Residents saw bodies on the ground and a SWAT team quickly moving into action as they looked out their windows Monday.

“I heard like a good 25 shots go off, I look out the window and I saw a dead body there,” witness Christian Santana told CBS 2’s Tony Aiello.

“The gunshots sounded so close, I ran and hid in my closet,” Sheila Milbourne told Aiello.

Authorities said there was no obvious motive for the shootings Monday morning in a housing development near the Jersey shore.

With reports of a gunman on the loose, schools went into lock down earlier and residents were told to stay indoors.

Investigators are still investigating the shooting and trying to sort things out, Aiello reported.

(Copyright 2010 by The Associated Press. All Rights Reserved.)