Good points. Indeed, Alec Baldwin is internationally known for being a D**khead. Hence, you have legions of people to consider, each with a private motive to destroy his career and take his freedom of movement away.
Was Alec having an affair....still sits in the back of my mind. This "non-accident" would likely cost him less than a divorce.
Makes sense when you consider if he was having an affair, he could pass this off as an "accident" while getting rid of the threat so he could get away with the wife being none the wiser.