PLANO, Texas - Police put out a plea for tips in a week-old murder in north Plano.
Electrical engineer Christopher Collinvitti was found dead last Tuesday night at his home near Independence Parkway and Hedgcoxe Road.
Police said there was a dark sedan in the area around the time of the shooting. They are asking neighbors to review their home security cameras for footage.
There is a $5,000 reward for information leading to an arrest.