A third person is under arrest in connection with a deadly home invasion in Brooklyn.

44-year-old Howard Morris was taken into custody in Williamsburg Friday.

Police say Morris, along with Suzette Troutman and her nephew Dwayne Blackwood, were involved in the robbery of an elderly couple last October.

100-year-old Ethlin Thompson and her 91-year-old husband Waldiman were inside their home when two men stormed in.

One of the intruders tied Ethlin's arms and legs and covered her head.

After they left the house, she was able to free herself.

Her husband later died of heart failure.

Troutman had cared for the couple.

She allegedly came up with the plot to rob them and enlisted the help of her nephew and Morris.

Investigators say she waited in a car outside the home.

They made off with about $5,000 in cash.

All three have been charged with murder.

Morris is scheduled to be arraigned in the coming weeks.