PUERTO RICO - Police in Puerto Rico have released surveillance video of a man accused of stabbing an 18-year-old mother to death inside a hospital.

Police say the man disguised himself to look like a doctor and entered the hospital in Mayaguez.

The man is seen parking a car in the parking lot outside the hospital and then walking inside.

He is seen covering his face as he tries to hide from security cameras. 

He eventually makes his way to the woman's room, where he is accused of stabbing her to death.

The woman gave birth to a child just a few days before and was still recovering at the hospital

Police say it only took the man 10 minutes to get from his car to inside the hospital where the alleged murder took place.

They say the suspect was later arrested.