Seizing computers and cell phones has become standard operating procedure for LE nowadays.
I think they will try to determine if she was communicating with someone quite regularly, and if so, they will want to see what the contents/subject of those emails contained and they will look at all the activity on the computer.
It sure doesn't sound like something a hired hit man would do. Hit men usually use silencers. They find ways to access the home without forcing entry like making up an excuse and pretending to be someone else. They don't scream and draw attention that they are there.
With the neighbor hearing screaming, and a loud male voice it seems to me there is an emotional connection between him and Dr. Teresa in someway. Killing someone with a hammer is a very up close, and personal way to murder someone. With the loud voices it seem to have been an heated argument of some kind going on at the time before she was murdered. If he had used the hammer to force entry he could have used it to kill her if they were in a heated argument at the time.
I even wonder if he first came to the door, and she cut the alarm off, answered the door because she knew him. But during the conversation something may have spooked her by what was said, and she slammed the door shut, locking it, and it was then he forced entry into the home after then.
IMO