The Arizona police released a new composite sketch of a single suspect, may be responsible for a series of shootings that have left seven people dead in the valley.

Sgt. Jonathan Howard of the Phoenix Police Department, said that, the suspect is a lanky Hispanic male  between 20 and 30 years old, under 5 feet, 10 inches tall.

"All of the witnesses have described that the suspect was outside of his car," said Howard. "We have not found any link between any of the victims to each other or the shooter."

The BBC news reported, the first attacks were reported in March when two men were shot while walking outside, both survived.

The last incident was took place on 12 June when three women were shot and killed outside a home in west Phoenix.

All of the shootings were took place during night hours, and the victims appear to have been targeted at random.

The sketch was developed with the help of a witness to one of the shootings.

"Someone out there knows who did this," Phoenix Police Chief Joseph Yahner said. "We need our community to help us solve these cases."

Also Read: Two women killed in Arizona courthouse shooting!

Nandini